Frankenstein Halloween Treats

Section: Festive Flavors Year Round

These Frankenstein-inspired Halloween treats combine crispy cereal and marshmallows into a fun, festive snack. Melted butter and marshmallows mix with cereal to create a sticky base set in a casserole dish. Once firm, treats are dipped in bright green candy melts, sprinkled with black jimmies, and adorned with royal icing eyes for a playful look. Black candy melts are piped as stitches to complete the spooky design. Perfect for Halloween celebrations or themed parties.

Harper
Contributed by Harper
Last updated on Sun, 28 Sep 2025 23:47:51 GMT
Frankenstein Halloween Rice Krispie Treats. Save
Frankenstein Halloween Rice Krispie Treats. | flavorrhaven.com

These Frankenstein Halloween Rice Krispie Treats bring a playful and festive twist to a childhood favorite. Perfect for a spooky party or just a fun treat to enjoy with family, these colorful and crunchy delights combine the classic marshmallow sweetness with a creative monster design that captures the Halloween spirit.

The first time I made these, my nieces were fascinated by the goofy faces and loved helping me decorate each one with careful precision. Now they ask to make them every October as part of our holiday traditions.

Ingredients

  • 6 cups rice krispie cereal: provides the perfect crispy base for the treats
  • One 10-ounce bag mini marshmallows: gives the classic gooey texture
  • Four tablespoons unsalted butter: helps melt the marshmallows smoothly and adds richness
  • Ten ounces green candy melts: the bright green color brings Frankenstein’s monster to life choose high-quality melts for smooth coating
  • Three ounces black candy melts: used for decorating details like stitches
  • Royal icing eyes: ready-made eyes add an instant spooky charm
  • Black jimmies sprinkles: create texture and mimic the monster’s hair or scars make sure they are fresh and free-flowing

Instructions

Sauté the Aromatics:
Cook the butter in a large pot over low to medium heat until completely melted but not browned. This sets the stage for your marshmallows.
Melt the Marshmallows:
Add the mini marshmallows to the pot, stirring consistently until the mixture turns smooth and glossy without burning. This step is crucial for binding your cereal.
Combine with Cereal:
Pour the rice krispie cereal into the pot and stir vigorously to coat every piece evenly with the marshmallow mixture. This ensures the treats hold together well.
Press into Dish:
Transfer the coated cereal to a buttered 9-inch by 13-inch dish and press firmly with a spatula to flatten the surface and compact the treats. This helps them set into a sturdy shape.
Cool and Cut:
Let the dish sit undisturbed for at least 30 minutes to firm up. Then remove and slice into rectangles of various sizes to mimic Frankenstein’s face shapes.
Melt Green Candy:
Using a double boiler setup place a bowl over gently boiling water and add the green candy melts. Stir often until fully melted and smooth. Thin with a teaspoon of vegetable shortening if needed for dipping.
Dip and Decorate:
Dip the top of each treat into the melted green candy melts then immediately into black jimmies sprinkles for texture. Apply two royal icing eyes to each while the coating is still tacky.
Melt Black Candy:
Melt the black candy melts in short bursts in the microwave using 10 to 15 second increments stirring in between until smooth.
Pipe Stitches:
Fill a piping bag with melted black candy and carefully pipe stitch marks onto each treat for the monster’s signature look.
Set:
Allow the decorated treats to set completely before handling or packaging, about 30 minutes at room temperature.
Rice Krispie Treats shaped like Frankenstein monsters.
Rice Krispie Treats shaped like Frankenstein monsters. | flavorrhaven.com

These treats bring me back to my childhood Halloween memories. The green candy melts are my favorite part because they make it so easy to transform simple rice krispie bars into whimsical monsters. Decorating them with kids became a joyful ritual in our family, filled with laughter and creativity.

Storage tips

Keep these treats in an airtight container at room temperature up to three days to maintain their crisp texture. For longer storage wrap tightly in plastic wrap and freeze for up to two months. Thaw at room temperature before decorating.

Ingredient substitutions

If you do not have black candy melts royal icing eyes or black jimmies you can use black decorating gel or edible markers for features. White chocolate with green food coloring can replace green candy melts but may change texture slightly.

Serving suggestions

Serve with warm apple cider or hot chocolate for a perfect Halloween movie night. They also pair well with pumpkin spice cookies or candy corn for a themed dessert table.

A plate of Frankenstein rice krispie treats.
A plate of Frankenstein rice krispie treats. | flavorrhaven.com

When piping stitches practice on parchment paper first to avoid mistakes. Using a double boiler prevents burning your candy melts and ensures smooth coating.

FAQs about Recipes

→ What cereal is best for the base?

Rice Krispie cereal works best due to its crisp texture and ability to hold marshmallow coating well.

→ How do I melt the candy melts without burning?

Melt candy melts gently using a double boiler or microwave in short increments, stirring frequently.

→ Can I use different colors of candy melts?

Yes, various candy melt colors can be used to customize the treats for different themes or preferences.

→ How should the treats be stored to stay fresh?

Store in an airtight container at room temperature to keep the treats crisp and maintain their decoration.

→ What is the purpose of the royal icing eyes?

The royal icing eyes add detailed decoration that brings the Frankenstein design to life.

Frankenstein Halloween Treats

Spooky treats coated in green and black candy melts, decorated with icing eyes and sprinkles.

Prep Time
15 mins
Cooking Time
30 mins
Overall Time
45 mins
Contributed by: Harper

Recipe Category: Holiday Specials

Skill Level: Beginner-Friendly

Cuisine Type: American

Recipe Output: 12 Portion Size (Approximately 12 rectangular treats)

Dietary Features: Vegetarian-Friendly

What You'll Need

→ Main

01 6 cups Rice Krispies cereal
02 10-ounce bag mini marshmallows
03 4 tablespoons unsalted butter

→ Decoration

04 10 ounces green candy melts
05 3 ounces black candy melts
06 Royal icing eyes
07 Black jimmies sprinkles

Step-by-Step Guide

Step 01

Butter a 9 x 13-inch casserole dish to prevent sticking.

Step 02

In a large pot over low to medium heat, melt the butter. Add the mini marshmallows and stir continuously until completely smooth.

Step 03

Add the Rice Krispies cereal to the melted marshmallow mixture. Stir with a spatula until the cereal is evenly coated.

Step 04

Transfer the mixture into the prepared casserole dish. Press firmly to fill the dish evenly and flatten the top surface.

Step 05

Allow the mixture to set and cool for 30 minutes to firm up completely.

Step 06

Remove the set mixture from the dish and cut into rectangular pieces of assorted sizes.

Step 07

Using a double boiler method, place a bowl over a pot of boiling water and add the green candy melts. Stir until smooth. If the coating is too thick for dipping, add one teaspoon of vegetable shortening to thin it.

Step 08

Dip the top of each Rice Krispie piece into the melted green candy coating, then immediately coat with black jimmies sprinkles.

Step 09

Place two royal icing eyes onto each coated treat while the coating is still wet to ensure adhesion.

Step 10

Melt the black candy melts in a microwave-safe bowl using 10 to 15-second intervals until smooth.

Step 11

Fill a piping bag with the melted black candy melts and pipe stitch-like designs onto each treat to complete the Frankenstein look.

Step 12

Let the decorated treats set fully at room temperature before packaging or serving.

Additional Notes

  1. Use vegetable shortening sparingly to adjust candy melt consistency for perfect dipping.

Tools You'll Need

  • 9 x 13-inch casserole dish
  • Large pot
  • Double boiler setup
  • Microwave-safe bowl
  • Piping bag

Allergen Notices

Inspect every ingredient for potential allergens and seek expert advice if necessary.
  • Contains dairy and gluten; not suitable for individuals with allergies to butter or gluten