Marshmallow Rice Bubbles Halloween Brains Recipe
Introduction
Celebrate Halloween with a spooky treat that’s fun to make and delicious to eat. These Marshmallow Rice Bubbles Halloween Brains are soft, sweet, and perfect for parties or a festive snack. Kids and adults alike will enjoy shaping and decorating these gooey brain-shaped treats.

Ingredients
- 85 g unsalted butter
- 6 cups regular marshmallows
- 4 cups Rice Bubbles (Krispies)
- ½ tsp salt
- red food colouring
Instructions
- Step 1: Prepare a Bain-Marie by adding ½ cup of water to a small pot and bringing it to a boil. Place a large heatproof bowl over the pot, ensuring it doesn’t touch the water.
- Step 2: Add the butter and marshmallows to the heatproof bowl. Whisk continuously until the mixture melts and forms a smooth paste, about 2 to 4 minutes.
- Step 3: Using oven mitts or a tea towel, carefully remove the bowl from the pot. Stir in the salt and add a drop or more of red food colouring, whisking until fully combined.
- Step 4: Place the Rice Bubbles in a large mixing bowl. Pour the marshmallow mixture over them and mix thoroughly to coat all the Rice Bubbles evenly.
- Step 5: Lightly oil your hands to prevent sticking. Shape the coated Rice Bubbles into oval brain shapes. Use a butter knife to create a dent along the center of each brain for detail.
- Step 6: Dip a toothpick into the red food colouring and draw vein-like lines on the brains to complete the look. Allow them to set before serving.
Tips & Variations
- Use pink or red-tinted marshmallows for an extra brain-like color before melting.
- Add a few drops of vanilla extract to the marshmallow mixture for a subtle flavor boost.
- If you don’t have Rice Bubbles, puffed rice or crispy cereal alternatives work well.
- For a more gruesome effect, drizzle some extra red food coloring or raspberry syrup over the finished brains.
Storage
Store the shaped brains in an airtight container at room temperature for up to one week. Avoid refrigeration as it can make them hard. To refresh firmness, briefly warm them in the microwave for a few seconds before serving.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use different cereals instead of Rice Bubbles?
Yes, puffed rice or crispy cereal variations like cornflakes can be used, though the texture and appearance may differ slightly.
How do I keep the marshmallow mixture from sticking to my hands?
Lightly oiling your hands with a neutral oil or butter before shaping the mixture will prevent sticking and make shaping easier.
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Marshmallow Rice Bubbles Halloween Brains Recipe
- Total Time: 15 minutes
- Yield: 12–15 brain-shaped treats 1x
Description
Enjoy a spooky Halloween treat with these Marshmallow Rice Bubbles Halloween Brains. Made by combining melted butter, marshmallows, and crispy Rice Bubbles, these shaped treats are decorated with red food coloring to resemble creepy brains. Perfect for Halloween parties or themed gatherings, this no-bake recipe is easy to prepare using a bain-marie method for smooth melting and simple mixing.
Ingredients
Ingredients
- 85 g unsalted butter
- 6 cups regular marshmallows
- 4 cups Rice Bubbles (Krispies)
- ½ tsp salt
- Red food colouring (as needed for tinting and decoration)
Instructions
- Prepare the bain-marie: Start by placing 1/2 cup of water into a small pot and bring it to a boil. Place a large heatproof bowl securely over the pot to create a bain-marie setup for gentle melting.
- Melt butter and marshmallows: Add the unsalted butter and marshmallows into the heatproof bowl. Continually whisk the mixture until it forms a smooth paste, which typically takes 2 to 4 minutes.
- Add salt and coloring: Carefully remove the heatproof bowl from the pot using oven mitts or a tea towel. Stir in the ½ teaspoon salt and add a drop or more of red food colouring, whisking well to combine and tint the mixture evenly.
- Mix with Rice Bubbles: Place the Rice Bubbles in a large mixing bowl. Pour the warm marshmallow mixture over the Rice Bubbles and thoroughly mix to coat all the cereal evenly.
- Shape the brains: Lightly oil your hands to prevent sticking. Shape the coated Rice Bubbles into oval brain shapes. Use a butter knife to create a dent in the center to mimic the brain’s grooves.
- Add vein details: Dip a toothpick into red food colouring and carefully draw veins on the surface of each brain shape for a realistic Halloween effect.
- Store properly: Place the finished brain treats into an airtight container. They can be kept fresh for up to one week.
Notes
- Use oven mitts or a thick tea towel when handling the hot bowl to avoid burns.
- Adjust the amount of red food colouring according to your desired intensity.
- Oil your hands lightly when shaping to prevent sticking and ensure smooth forming.
- Store the treats in an airtight container at room temperature to keep them fresh and crunchy.
- Use regular Rice Bubbles or similar puffed rice cereal for best texture.
- Prep Time: 10 minutes
- Cook Time: 5 minutes
- Category: Dessert
- Method: No-Cook
- Cuisine: American
Keywords: Halloween treats, Marshmallow Rice Bubbles, Halloween brains, no-bake dessert, spooky snacks, kids party food

