Halloween Appetizer Ideas: 22 Spooky Bites for Any Party

Key Takeaways

• The most successful Halloween appetizers taste genuinely good visual novelty alone does not compensate for flavour

• Group your spread into three categories: creepy-cute (for kids), sophisticated spooky (for adults), and universally crowd-pleasing dips and boards

• Most Halloween appetizers can be prepared 24 to 48 hours in advance make-ahead options are marked throughout

• Mummy dogs, deviled eggs, and spider guacamole are consistently the highest-volume appetizers because they disappear fastest



• A Halloween charcuterie board covers almost every guest's preference in a single display and takes less than 30 minutes to assemble

Easy Halloween Appetizers (Under 20 Minutes)

These appetizers require minimal preparation and deliver maximum visual impact. They suit hosts who want a festive spread without spending the day before the party in the kitchen.

1. Mummy Hot Dogs

Mummy hot dogs are the Halloween appetizer that disappears fastest at any party, every year. They are universally liked, take under 20 minutes, and the mummy concept translates immediately to every age group.

Ingredients: 8 cocktail frankfurts or mini hot dogs, 1 sheet of puff pastry (thawed), 1 egg beaten for egg wash, mustard dots for eyes.

Method: Preheat oven to 200°C. Cut the puff pastry into thin strips approximately 1cm wide. Wrap each frankfurt in strips leaving a small gap near the top for the face. Place on a lined baking tray, brush lightly with egg wash, and bake for 15 minutes until the pastry is golden. Add two small mustard dots for eyes while still warm.

Serving: Stand upright in a cluster on a serving board for the full mummy graveyard effect. These stay well at room temperature for up to 2 hours after baking.

Make-ahead: Wrap the frankfurts in pastry the day before and refrigerate unbaked. Bake directly from the fridge on the day, add 3 minutes to baking time.

2. Spider Web Guacamole

Guacamole is crowd-pleasing regardless of the season. The Halloween version adds a spider web design that takes 3 minutes and no artistic skill to execute and transforms a standard dip into a table centrepiece.

Ingredients: 3 ripe avocados, juice of 1 lime, 1 small red onion finely diced, 1 tomato finely diced, salt to taste, sour cream in a squeeze bottle, 1 black olive for the spider.

Method: Mash avocados with lime juice, onion, tomato, and salt to your preferred texture. Transfer to a wide, shallow bowl and smooth the surface with a spoon. Using the squeeze bottle, draw 4 to 5 concentric circles of sour cream across the surface of the guacamole. Pull a toothpick from the centre outward at regular intervals to create the web pattern. Place a halved black olive in the centre as the spider body and use small olive slices as legs.

Serving: Place on a board surrounded by corn chips, carrot sticks, and cucumber rounds.

Make-ahead: Prepare the guacamole up to 4 hours ahead and store with cling film pressed directly onto the surface to prevent browning. Add the spider web design immediately before serving.

3. Caprese Ghost Skewers

Ghost-shaped mozzarella on skewers is one of the few Halloween appetizers that is both genuinely elegant and immediately recognisable as Halloween-themed which makes it the right choice for adult parties where you want festive without kitschy.

Ingredients: 250g fresh mozzarella ball, cherry tomatoes, fresh basil leaves, toothpicks or small skewers, balsamic glaze, black sesame seeds.

Method: Slice the mozzarella ball into irregular teardrop shapes roughly 4 to 5cm tall to suggest a ghost silhouette. Press two black sesame seeds into each mozzarella piece for eyes. Thread each ghost onto a skewer alternating with a cherry tomato and a basil leaf. Drizzle with balsamic glaze before serving.

Make-ahead: Assemble skewers up to 4 hours ahead and refrigerate covered. Add balsamic glaze just before serving.

4. Pumpkin Shaped Quesadillas

Cut into pumpkin shapes using a cookie cutter, standard cheese quesadillas become a Halloween appetizer that children consistently respond to better than any deliberately "spooky" food.

Ingredients: 4 flour tortillas, 1.5 cups grated cheddar, 1 cup black beans (rinsed and drained), 1 cup corn kernels, taco seasoning to taste, sour cream for dipping.

Method: Sprinkle cheese, beans, and corn across one half of each tortilla. Season lightly with taco seasoning. Fold in half and cook in a dry pan over medium heat for 2 to 3 minutes per side until golden and the cheese is melted. Allow to cool for 2 minutes, then use a pumpkin-shaped cookie cutter to cut shapes from the quesadilla. Serve with sour cream for dipping.

Make-ahead: Cook quesadillas up to 2 hours ahead and keep warm in a 120°C oven on a wire rack until needed. Cut shapes immediately before serving for the cleanest edges.

5. Witch Hat Crackers

A no-cook Halloween appetizer that takes 10 minutes and suits both kids and adults equally well.

Ingredients: Round crackers (Jatz or similar), cream cheese or hummus, black sesame crackers or dark rye crispbreads, orange cheddar slices cut into circles.

Method: Spread cream cheese onto each round cracker. Cut cheddar into small circles and place on the cream cheese as the brim of the hat. Place a small square of dark cracker on top of the cheddar circle to form the hat body. Use a thin strip of cheddar as the hat band. Arrange on a board.

Make-ahead: Assemble up to 1 hour before serving, do not prepare further ahead as the crackers soften.

Impressive Halloween Appetizers (30 to 45 Minutes)

These appetizers require more preparation but deliver the kind of visual impact that anchors a Halloween spread. They are the items guests photograph and remember.

6. Mummy Baked Brie

Baked brie wrapped in puff pastry strips to create a mummy effect is the Halloween appetizer that consistently generates the most comments. It is also genuinely delicious, the combination of warm, melted brie and golden pastry is crowd-pleasing regardless of the occasion.

Ingredients: 1 wheel of brie (approximately 250g), 1 sheet of puff pastry (thawed), 2 tablespoons of cranberry jam or honey, 1 egg beaten, small candy eyes or olive slices for eyes.

Method: Preheat oven to 190°C. Place the brie wheel in the centre of the puff pastry sheet. Spread cranberry jam or honey on top of the brie. Cut the pastry into 1 to 1.5cm strips. Wrap strips across the brie leaving a gap at the top for the face leave the top of the brie exposed and cross the strips at irregular angles to create the mummy effect. Brush the pastry with egg wash. Add candy eyes or small olive rounds for the face. Bake for 20 to 25 minutes until the pastry is deep golden brown.

Serving: Serve immediately on a wooden board with crackers, sliced baguette, and apple slices. The brie will continue to hold its shape for approximately 20 minutes after baking before the pastry softens.

Make-ahead: Wrap the brie in the pastry up to 24 hours ahead, refrigerate unbaked, and bake directly from the fridge adding 5 minutes to the baking time.

7. Deviled Egg Eyeballs

Deviled eggs styled as eyeballs are one of the most visually effective Halloween appetizers because the eyeball concept is both immediately recognisable and not actually unpleasant to eat unlike some Halloween-themed foods that prioritise visual horror over flavour.

Ingredients: 8 large eggs, 3 tablespoons mayonnaise, 1 teaspoon Dijon mustard, 1 teaspoon white wine vinegar, salt and white pepper, green or yellow food colouring, sliced black olives for pupils, paprika for blood vessel effect.

Method: Hard boil eggs for 10 minutes, cool in ice water, and peel. Halve lengthways and remove yolks. Mash yolks with mayonnaise, mustard, vinegar, salt, and white pepper until smooth. Add 2 to 3 drops of green food colouring to the yolk mixture for a slightly unsettling colour. Pipe or spoon the mixture back into the egg whites. Place a slice of black olive in the centre of each filled egg as the pupil. Using a toothpick dipped in red food colouring, draw small lines radiating from the olive to create blood vessel detail. Dust the edge with paprika.

Make-ahead: Boil and fill eggs up to 24 hours ahead and refrigerate covered. Add the olive pupils and blood vessel detail immediately before serving to keep the visual detail sharp.

8. Jack-o-Lantern Stuffed Capsicums

Orange capsicums carved with jack-o-lantern faces and filled with a warm dip or stuffing are a Halloween appetizer that doubles as decoration, they sit on the table as both food and festive display.

Ingredients: 4 medium orange capsicums, 1 cup cream cheese softened, 1 cup grated cheddar, 1 can corn kernels drained, 1 spring onion sliced, smoked paprika, salt and pepper.

Method: Preheat oven to 180°C. Cut the top off each capsicum and remove the seeds and membrane. Using a small sharp knife or pumpkin carving tool, cut jack-o-lantern faces into the side of each capsicum, triangle eyes, a jagged mouth, and a small triangular nose. Mix cream cheese, cheddar, corn, spring onion, paprika, salt, and pepper. Fill each capsicum with the cheese mixture. Replace the top of the capsicum at an angle. Place on a baking tray and bake for 20 to 25 minutes until the capsicum is soft and the filling is bubbling.

Serving: Place on a platter of fresh herbs or shredded lettuce to suggest a pumpkin patch. Serve with crackers alongside for scooping.

Make-ahead: Fill the capsicums up to 24 hours ahead and refrigerate. Carve the faces on the day of serving and bake from cold, adding 5 minutes to baking time.

9. Spiderweb Cream Cheese Dip

A cream cheese dip decorated with a sour cream spider web pattern and served in the centre of a platter of dippers is a no-bake alternative to the baked brie that suits hosts who prefer cold appetizers or have limited oven space on the day.

Ingredients: 500g cream cheese (softened), 1 packet taco seasoning, 1 can black beans (drained and rinsed), 1 cup salsa, grated cheddar, sour cream in a squeeze bottle, 1 black olive spider, corn chips and vegetable sticks.

Method: Beat cream cheese with taco seasoning until smooth. Spread into a wide, shallow serving dish. Layer salsa across the cream cheese, then scatter black beans and grated cheddar. Use the squeeze bottle to draw concentric circles of sour cream across the top. Drag a toothpick from centre outward at regular intervals to create the web. Place a halved olive spider in the centre. Surround the dip with corn chips and vegetable sticks on the platter.

Make-ahead: Prepare the cream cheese base and refrigerate up to 48 hours ahead. Add the toppings and web design on the day of serving.

10. Breadstick Witch Fingers

Grissini-style breadsticks with a green-tinted dipping sauce and an almond "fingernail" pressed into the end create one of Halloween's most iconic appetizer visuals without requiring any baking skill.



Ingredients: 12 store-bought grissini breadsticks, 1 cup hummus, green food colouring, 12 blanched almond halves, paprika for the knuckle detail.

Method: Tint the hummus green using 4 to 5 drops of food colouring and mix thoroughly. Place in a serving bowl. Press one almond half onto the end of each breadstick as a fingernail. Using a skewer dipped in paprika, draw two small horizontal lines across each breadstick to suggest knuckle wrinkles. Stand the witch fingers upright in the green hummus for serving, or arrange them pointing outward from the bowl on a platter.

Make-ahead: Tint the hummus up to 24 hours ahead. Attach the almond fingernails within 2 hours of serving to prevent them from slipping.

Halloween Dips and Boards

Dips and boards are the most practical category of Halloween appetizer because they accommodate multiple dietary preferences simultaneously, require no plating of individual items, and create the most visually impactful spread relative to preparation effort.

11. Halloween Charcuterie Board

A good Halloween charcuterie board should be fun but also yummy and most importantly, it should not take all day to make. The key is selecting components that work together as a spread while contributing to the Halloween colour palette: orange, black, white, and deep red.

Core components: Aged cheddar (orange), fresh mozzarella (white), smoked gouda (dark), prosciutto or salami (deep red/black when rolled), water crackers, dark rye crisps, grapes (black and red), dried apricots (orange), figs (dark), walnuts, almonds, green olives, black olives.

Halloween styling: Cut cheddar into ghost shapes using a small cutter. Fold prosciutto into bat wing shapes. Arrange black and orange elements alternately across the board. Use a small pumpkin or carved capsicum as a centrepiece vessel for one component. Add candy eyes to mozzarella balls for ghost effect. Skull-shaped cookie cutters pressed into cheddar slabs create shapes without waste.

Assembly tip: Work from large items to small places the cheese blocks and centrepiece vessel first, then add the crackers, then fill the gaps with fruit, nuts, and small items.

Make-ahead: Assemble the board up to 2 hours ahead covered loosely with cling film. Add crackers within 30 minutes of serving to prevent softening.

12. Graveyard Taco Dip

A layered taco dip styled as a graveyard with guacamole grass, tortilla chip tombstones, and a sour cream ghost effect is the most visually committed version of a universally crowd-pleasing dip.

Ingredients: 1 cup refried beans, 1 cup sour cream mixed with 1 packet taco seasoning, 1 cup guacamole, 1 cup salsa, 1 cup grated cheddar, shredded lettuce, black olive "RIP" inscriptions on tortilla chips, sour cream ghost details, corn chips for serving.

Method: In a wide, shallow dish, spread refried beans as the base layer. Add the seasoned sour cream layer. Add guacamole across the upper portion of the dip to suggest grass. Add salsa in the remaining area. Scatter grated cheddar and shredded lettuce. Stand tortilla chips upright as tombstones, inscribing "RIP" with a toothpick dipped in sour cream. Pipe small ghost shapes using sour cream across the guacamole grass area. Add crumbled dark cracker as soil detail.

Make-ahead: Layer the dip without the garnishes up to 24 hours ahead. Add the tortilla tombstones and sour cream details within 30 minutes of serving.

13. Black Bean and Corn Salsa with Spider Web

Standard black bean and corn salsa becomes a Halloween appetizer by serving it in a shallow bowl with the spider web sour cream design across the top and a black olive spider in the centre. The black beans and orange corn already contribute to the colour scheme naturally.

Ingredients: 1 can black beans (drained and rinsed), 1 cup corn kernels, 1 red capsicum finely diced, 1 small red onion finely diced, juice of 2 limes, coriander, cumin, salt, sour cream in a squeeze bottle.

Method: Combine all ingredients except sour cream and rest for 30 minutes to allow flavours to develop. Transfer to a shallow serving bowl. Apply sour cream spider web design as per the guacamole method above. Serve with corn chips and cucumber rounds.

Make-ahead: Prepare up to 24 hours ahead and refrigerate. Add the web design immediately before serving.

14. Pumpkin Shaped Hummus Platter

Hummus sculpted or presented in a pumpkin shape on a large platter, surrounded by colourful vegetable dippers, is the Halloween appetizer that suits guests looking for something lighter while still fitting the occasion.

Ingredients: 400g hummus (store-bought is fine), smoked paprika, olive oil, carrot sticks (orange), cucumber slices (green), red capsicum strips (red), celery, pita bread or crackers.

Method: Spoon hummus into the centre of a large round platter. Use a spoon to shape the hummus into a rough circle and create a slight pumpkin shape by pressing indentations at intervals around the edge to suggest pumpkin ribs. Drizzle olive oil across the surface and dust with smoked paprika, the oil will pool in the grooves, emphasising the pumpkin shape. Arrange carrot sticks at the top as the pumpkin stem. Surround with vegetable dippers arranged by colour to create a bright, festive spread.

Make-ahead: Assemble the platter up to 2 hours ahead covered with cling film. The paprika and olive oil garnish should be added within 30 minutes of serving.

Halloween Appetizers for Kids

These appetizers are specifically designed for kids' Halloween parties or events where the majority of the appetite at the table belongs to children under 12. They prioritise familiarity, fun, and manageable mess.

15. Ghost Toast

Ghost-shaped cream cheese toast with black sesame seed eyes is a no-cook appetizer that children can assemble themselves which makes it both a food and an activity.

Ingredients: White bread, cream cheese, black sesame seeds or mini chocolate chips.

Method: Cut bread into ghost shapes using a ghost-shaped cutter or by hand. Spread cream cheese across each ghost. Press two sesame seeds or mini chocolate chips into the cream cheese for eyes and one for a small mouth.

Make-ahead: Cut the bread shapes up to 4 hours ahead and store in an airtight container. Spread cream cheese within 1 hour of serving.

16. Monster Guacamole Cups

Individual avocado cups styled as monster faces using corn chip horns, olive eyes, and cheese fangs turn a standard dip into a personal Halloween appetizer that children find more engaging than a shared bowl.

Ingredients: 2 avocados (halved, stone removed), lime juice, salt, corn chips for horns, olive slices for eyes, thin strips of cheddar for fangs.

Method: Squeeze lime juice over each avocado half and season with salt. Using a small spoon, create a slight indent in the avocado flesh for the mouth area. Press two corn chip triangles into the top of each avocado as horns. Place two olive circle slices for eyes. Tuck two thin strips of cheddar under the corn chip "lip" as fangs. Serve in the avocado skin with small crackers or vegetable sticks alongside.

17. Jack-o-Lantern Mini Pizzas

English muffin or pita bread pizzas cut and decorated as jack-o-lanterns appeal to children consistently because the format (pizza) is immediately familiar and the customisation (their own jack-o-lantern face) adds engagement.

Ingredients: 4 English muffins split, pizza sauce, grated mozzarella, capsicum strips, black olive slices.

Method: Preheat oven to 200°C. Spread pizza sauce across each muffin half. Cover with mozzarella. Use capsicum strips and olive slices to create jack-o-lantern faces, triangle eyes, a jagged mouth. Bake for 10 to 12 minutes until the cheese is melted and beginning to brown.

Make-ahead: Assemble muffins without baking up to 4 hours ahead, refrigerate, and bake immediately before serving.

18. Witch Hat Strawberries

Chocolate-dipped strawberries dressed as witch hats using a chocolate-dipped cone base are a dessert-adjacent appetizer that suits children's Halloween parties particularly well.

Ingredients: 250g strawberries (hulled), 150g dark chocolate melted, small sugar cones, white chocolate or orange candy melts for the hat band decoration.

Method: Dip each strawberry in melted dark chocolate and allow to set on baking paper for 15 minutes. Dip the tip of each sugar cone in dark chocolate and press onto the flat base of the dipped strawberry (where the hull was removed) while the chocolate is still slightly tacky. Allow to set fully. Pipe a thin orange band using candy melts around the base of the cone where it meets the strawberry as the hat band.

Make-ahead: Dip and assemble up to 4 hours ahead and refrigerate. Bring to room temperature 20 minutes before serving.

Sophisticated Halloween Appetizers for Adults

These appetizers suit adult Halloween parties where the host wants festive food that does not compromise on quality or require guests to eat something that looks deliberately gross.

19. Roasted Capsicum and Goat Cheese Crostini with Black Sesame

The black sesame coating on the crostini and a cracked black pepper and herb oil drizzle push this standard crostini into Halloween territory through colour rather than gimmick which is the approach that works best for adult gatherings.

Ingredients: 1 baguette sliced diagonally, olive oil, 2 roasted red capsicums sliced, 150g soft goat cheese, black sesame seeds, fresh thyme, cracked black pepper, balsamic glaze.

Method: Brush baguette slices with olive oil and toast under a grill until golden. Spread each crostini with goat cheese. Layer roasted capsicum strips on top. Sprinkle with black sesame seeds and fresh thyme leaves. Drizzle with balsamic glaze. Finish with cracked black pepper.

Make-ahead: Toast the crostini up to 4 hours ahead and store in an airtight container. Assemble within 30 minutes of serving.

20. Black Sesame and Beetroot Dip

A deep purple-black beetroot dip with black sesame tahini swirled through it achieves Halloween colour without any artificial colouring which suits adult palates and the current preference for food that looks interesting rather than artificially decorated.

Ingredients: 3 medium roasted beetroot (cooled and roughly chopped), 2 tablespoons tahini, juice of 1 lemon, 1 garlic clove, 2 tablespoons olive oil, salt, black sesame seeds, extra olive oil for serving.

Method: Blend beetroot, tahini, lemon juice, garlic, olive oil, and salt until smooth. Adjust seasoning. Transfer to a serving bowl. Drizzle with extra olive oil and scatter black sesame seeds across the surface. Serve with dark rye crisps, cucumber, and carrot.

Make-ahead: Prepare up to 48 hours ahead and refrigerate. Bring to room temperature and add the sesame and oil garnish immediately before serving.

21. Smoked Salmon Blinis with Black Caviar or Lumpfish Roe

Black lumpfish roe (widely available at Australian supermarkets) on smoked salmon blinis provides Halloween colouring black and deep orange-pink through genuinely elegant ingredients.

Ingredients: Store-bought blinis (warmed briefly in the oven), crème fraîche, smoked salmon slices, black lumpfish roe or salmon roe, fresh dill, lemon wedges, cracked black pepper.

Method: Place a small dollop of crème fraîche on each blini. Fold a slice of smoked salmon on top. Add a small amount of black lumpfish roe to one side and salmon roe to the other if using both. Finish with a small sprig of dill and a twist of cracked pepper. Arrange on a platter with lemon wedges alongside.

Make-ahead: Assemble up to 1 hour ahead and refrigerate covered. The blinis will soften slightly but remain enjoyable.

22. Caramelised Onion and Gruyère Tart Bites

Small tart shells filled with caramelised onion and gruyère have a deep amber and golden colour palette that suits Halloween naturally without any theming and are one of the most reliably well-received appetizers at any adult gathering.

Ingredients: 24 store-bought mini tart shells, 3 large onions finely sliced, 2 tablespoons butter, 1 tablespoon balsamic vinegar, 1 teaspoon sugar, 150g gruyère grated, fresh thyme.

Method: Cook onions in butter over low heat for 25 to 30 minutes until deeply caramelised, stirring occasionally. Add balsamic vinegar and sugar in the final 5 minutes. Preheat the oven to 180°C. Fill tart shells with the caramelised onion and top with grated gruyère. Bake for 8 to 10 minutes until the cheese is melted and golden. Finish with fresh thyme leaves.



Make-ahead: Caramelise the onions up to 3 days ahead and refrigerate. Fill and bake the tarts within 30 minutes of serving.

Building Your Halloween Appetizer Spread

Rather than selecting individual items from across every category, a cohesive Halloween spread is built from three anchor components:

One showstopper: The item that becomes the centrepiece of the table: a mummy baked brie, a Halloween charcuterie board, or a graveyard taco dip. This is the item guests notice and photograph first.

Two to three crowd-pleasers: Mummy hot dogs, deviled egg eyeballs, spider web guacamole, or jack-o-lantern mini pizzas depending on your audience. These are the items that disappear fastest and need refilling.

One elegant option: For adult parties, the smoked salmon blinis, caramelised onion tarts, or black sesame beetroot dip provides an alternative to the theme-heavy items and ensures guests with more restrained taste preferences have something they genuinely want to eat.

For Halloween parties above 20 guests where preparing every item yourself would consume the entire day before the party, professional catering for the main components frees you to focus on the themed touches the charcuterie board, the decorated dips, the individual items that require personal attention while the substantial food is handled by a caterer. Cater King's finger food and event catering packages are available across Sydney from $40 per head with full setup and service included.

FAQs About Halloween Appetizers

What are the most popular Halloween appetizers? 

Mummy-wrapped brie, ghostly strawberries, and spiced pumpkin pie dip consistently rank among the most popular Halloween appetizers. 

Mummy hot dogs, deviled egg eyeballs, and spider web guacamole are the three highest-volume appetizers at Halloween parties in terms of how quickly they disappear, these are the items to make in the largest quantities.

How many appetizers do I need per person for a Halloween party? 

For a cocktail-style Halloween party where appetizers are the primary food, allow 10 to 14 pieces per person over a two to three hour event. 

For a party where appetizers precede a main meal, allow 4 to 6 pieces per person. For a kids' Halloween party with a two-hour window, 5 to 8 pieces per child is sufficient given the competition from lollies and sweet treats.

What Halloween appetizers can I make ahead? 

Most Halloween appetizers can be prepared at least partially ahead. With food prices being what they are, it is worth picking food your friends will actually want to eat and enjoy and make-ahead preparation supports quality by allowing you to focus on presentation on the day. 

The best make-ahead options are mummy baked brie (wrapped and refrigerated unbaked), deviled eggs (filled and refrigerated, details added on the day), graveyard taco dip (layered without garnishes), and all dips (prepared up to 48 hours ahead with garnishes added before serving).

What Halloween food works for both kids and adults? 

Mummy hot dogs, spider web guacamole, jack-o-lantern stuffed capsicums, and a Halloween charcuterie board all suit both age groups simultaneously. 

The charcuterie board is particularly effective for mixed-age parties because adults gravitate toward the cheese, charcuterie, and crackers while children take the fruit, nuts, and simpler components without either group feeling underserved.

How do I make Halloween appetizers that look spooky but actually taste good? 

Halloween appetizers do not have to look spooky to be a big hit at your Halloween party if given the choice between a dish that is "cutesy" and one that actually tastes good, taste wins. 

The most successful approach is to start with a genuinely good recipe and add one simple visual element: a mummy wrapping on a brie you would make anyway, a spider web on a guacamole that was already on the menu, or black sesame seeds on a dip that uses excellent ingredients. Visual theming that sits on top of genuinely good food always outperforms food designed primarily around its appearance.

What is a good Halloween appetizer for a large group? 

A Halloween charcuterie board serves the widest range of preferences with minimal per-item preparation and can be scaled easily by adding more components. 

A spider web guacamole with a large bowl and surrounding dippers, or a graveyard taco dip in a wide casserole dish, are the best single-item options for large groups because they serve 20 to 30 people from one preparation.