This rice krispie treat monsters recipe tints the classic marshmallow rice krispie treat mixture bright green, then presses it into monster-shaped bites topped with wobbly candy eyes. This easy Halloween snack recipe takes about 25 minutes and gives one of the most nostalgic no-bake treats a genuinely festive seasonal twist, making it a favorite kitchen project for kids to help decorate.
Recipe at a Glance
Prep Time: 15 minutes
Cook Time: 10 minutes
Total Time: 25 minutes
Servings: 12
Category: Dessert, snack
Why You’ll Love This Rice Krispie Treat Monsters
- This rice krispie treat monsters recipe takes a beloved classic and gives it a fun seasonal twist.
- No baking required, just melting, mixing, and pressing.
- A genuinely fun project for kids to help decorate with candy eyes.
- Ready in about 25 minutes, making it easy to whip up for a last-minute Halloween party.
Ingredients You’ll Need
- 3 tbsp butter
- 4 cups mini marshmallows
- 6 cups rice krispie cereal
- Green food coloring
- Candy eyes
- 1/2 cup melted chocolate, for mouths, optional
How to Make Rice Krispie Treat Monsters
- Melt the butter in a large pot, add the marshmallows, and stir until fully melted.
- Stir in a few drops of green food coloring until evenly tinted.
- Remove from the heat and fold in the rice krispie cereal until fully coated.
- Press the mixture into a greased pan and let cool slightly.
- Cut into squares, or use a round cutter for a more monster-like shape.
- Press candy eyes onto each treat while still slightly sticky.
- Dip in melted chocolate for a mouth, if desired.
Tips for the Best Rice Krispie Treat Monsters
- Work while the mixture is still warm for this rice krispie treat monsters recipe, since it becomes much harder to press and shape once it cools.
- Grease your hands or a spatula lightly before pressing the mixture into the pan to prevent sticking.
- Add the candy eyes while the treats are still slightly warm and sticky so they adhere properly.
- Add the food coloring gradually, checking the shade as you go, since a little goes a long way.
Variations to Try
- Use orange food coloring instead of green for a pumpkin-themed version.
- Add mini chocolate chips to the mixture for extra texture.
- Cut into different shapes using Halloween-themed cookie cutters.
How to Store It
Store in an airtight container at room temperature for up to 3 days.
Frequently Asked Questions
Why did my rice krispie treats turn out hard instead of soft?
This usually happens from overcooking the marshmallows or pressing the mixture too firmly into the pan — melt just until smooth and press gently for the softest texture.
Can I make rice krispie treat monsters ahead of time?
Yes, they keep well for a few days in an airtight container, making them a good make-ahead treat for parties.
What food coloring works best for tinting the treats?
Gel food coloring gives the most vibrant color without adding excess liquid, though liquid food coloring works fine in small amounts too.
Can I use a different cereal instead of rice krispies?
Yes, any similar puffed rice cereal works as a substitute, though the classic brand name cereal is what most people associate with this treat.
Rice Krispie Treat Monsters
Ingredients
Equipment
Method
- Step 1: Melt butter, add marshmallows, and stir until melted.
- Step 2: Stir in green food coloring until evenly tinted.
- Tip: Add gradually, since a little goes a long way.
- Step 3: Fold in the cereal until fully coated.
- Step 4: Press into a greased pan and let cool slightly.
- Tip: Work while still warm — it's harder to press once cooled.
- Step 5: Cut into squares or monster shapes.
- Step 6: Press candy eyes onto each treat.
- Step 7: Dip in melted chocolate for a mouth, if desired.