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Marshmallow Rice Bubbles Halloween Brains

Marshmallow Rice Bubbles Halloween Brains


  • Author: OliviaBennett

Description

These gooey, show-stopping treats are perfect for Halloween! Sweet, chewy, and just a little gross in the best way, they’re fun to make and even more fun to eat.


Ingredients

Scale
  • 6 tablespoons (85 g) unsalted butter

  • 6 cups regular marshmallows (or 1½ cups marshmallow fluff)

  • 4 cups Rice Bubbles / Rice Krispies®

  • ½ teaspoon salt

  • Red food colouring (gel preferred for vibrant color)

  • Optional for garnish/presentation: shredded coconut “zombie moss,” cocoa powder dusting, melted chocolate


Instructions

Step 1: Melt Butter
In a large saucepan over low heat, melt the butter gently. Avoid browning.

Step 2: Melt Marshmallows
Add marshmallows to the butter. Stir constantly over low heat until fully melted and smooth, about 5–7 minutes.

Step 3: Add Color & Salt
Remove from heat. Stir in salt and red food colouring, 4–5 drops gel (or 10–12 drops liquid). Adjust until a deep, “bloody” red is achieved.

Step 4: Fold in Cereal
Quickly add Rice Bubbles and fold gently until fully coated in the marshmallow mixture. Work quickly—mixture will start to set as it cools.

Step 5: Shape Brains
Butter your hands lightly. Grab about ½ cup of mixture and form into an oval mound. Place on a parchment-lined tray. Press a line down the center for hemispheres, then create squiggly lines with fingertips to mimic a brain. Repeat with remaining mixture.

Step 6: Set
Allow brains to cool and firm at room temperature for 20–30 minutes. Do not refrigerate.

Notes

  • Hard/Crunchy Brains: Marshmallows overheated or too much cereal—use low heat and measure accurately.

  • Sticky Brains: Too much liquid colouring or not enough cereal—add cereal gradually until manageable. Gel coloring is preferred.

  • Cleanup: Baking soda paste or boiling soapy water helps remove sticky marshmallow residue.

Nutrition

  • Calories: 160 cal Per Serving
  • Carbohydrates: 30 g
  • Protein: 1 g