These fun Monster Rice Krispie Treats are a playful twist on the classic snack! Made with gooey marshmallows and crispy rice cereal, they’re bursting with colorful sprinkles and candy eyes!
It’s hard not to smile when you see these silly monsters! I love making them for parties or any fun get-together. They’re super easy to whip up, and everyone gets a kick out of them. 🎉
Key Ingredients & Substitutions
Crispy Rice Cereal: This is the crispy base for our treats. If you can’t find the classic kind, try any puffed rice cereal—they work just as well.
Mini Marshmallows: These are key for that gooey texture! You can use regular marshmallows if needed; just cut them into smaller pieces before melting them.
Gel Food Coloring: This adds color and fun! If you don’t have gel color, liquid food coloring works too, but it might not be as vibrant. Just add a little at a time!
Candy Eyeballs: They make the treats come alive! If you can’t find them, you can use chocolate chips or even cut marshmallows into shapes for eyes—creativity is key here!
How Do I Make My Rice Krispie Treats Stick Together?
The secret to great Rice Krispie Treats is how you melt the marshmallows. Use low heat to ensure they melt evenly without burning. Stir often until smooth before mixing with the crispy rice.
- Remember to coat your mixing bowl with butter to prevent sticking!
- Press the mixture firmly into your pan—this helps them hold their shape.
- Let them cool completely before cutting to get nice, clean edges.

Monster Rice Krispie Treats
Ingredients You’ll Need:
- 6 cups crispy rice cereal
- 4 cups mini marshmallows
- 3 tbsp unsalted butter
- Green, orange, and purple gel food coloring
- 1 cup powdered sugar
- 2-3 tbsp milk (to adjust consistency for frosting)
- 1 tsp vanilla extract
- Candy eyeballs (large and medium-sized)
- Black decorating gel or black fondant for mouths and noses
How Much Time Will You Need?
This fun recipe takes about 30 minutes to prepare and cool the Rice Krispie Treats, plus an additional 15 minutes to decorate. So, in just about 45 minutes, you’ll have some super adorable monster treats ready to enjoy!
Step-by-Step Instructions:
1. Prepare the Rice Krispie Treat Base:
In a large pot, melt the unsalted butter over low heat. Once melted, add the mini marshmallows and stir continuously until they are completely melted and smooth. This should only take a few minutes!
2. Mix in the Cereal:
Remove the pot from the heat. Immediately stir in the crispy rice cereal, making sure to mix until all the cereal is well-coated with the marshmallow mixture. This will be your delightful base!
3. Shape the Treats:
Press the mixture firmly into a buttered 9×13 inch baking pan. Use a spatula or your hands (greased with butter) to ensure it’s packed down well. Allow it to cool completely for about 30 minutes.
4. Cut into Squares:
Once cooled, carefully cut the Rice Krispie treats into 2-inch squares. You should have a nice, clean set of treat bases ready for decorating!
5. Make the Colored Frosting:
In a mixing bowl, combine the powdered sugar, vanilla extract, and enough milk to make a stiff but pipeable frosting. Mix until smooth.
6. Divide and Color the Frosting:
Divide the frosting into three bowls. Add green gel food coloring to one bowl, orange to another, and purple to the last. Stir well until you have vibrant colors!
7. Prepare the Piping Bags:
Fill a piping bag fitted with a star tip with each color of frosting—this will allow you to create that fluffy monster texture.
8. Frost the Treats:
Pipe frosting over the top half of each Rice Krispie square, creating a monster-like furry look. Leave the bottom half bare for a cute contrast!
9. Decorate with Eyeballs:
Gently place candy eyeballs on top of the frosting. Use larger or medium-sized eyeballs based on the expression you’d like (fun, silly, or spooky!).
10. Add Mouths and Noses:
Use black decorating gel or small pieces of black fondant to make fun mouths and noses. Let your creativity shine! Create smiles, frowns, or even surprised expressions!
11. Let Set and Enjoy:
Allow the frosting to set before serving. Once done, they’re ready to impress your friends or family at any gathering!
These fun monster treats are perfect for a playful party dessert or a spooky-themed snack! Enjoy your adorable creations! 🎉
Can I Use Different Types of Cereal?
Absolutely! If you prefer a different texture, you can substitute the crispy rice cereal with any puffed cereal, like corn or quinoa puffs. Just ensure it’s crispy for the best results!
How Do I Store Leftover Treats?
Store any leftover Monster Rice Krispie Treats in an airtight container at room temperature for up to 3 days. If they start to get stale, just zap them in the microwave for a few seconds to regain some softness!
Can I Make These Treats Ahead of Time?
Yes, you can make the Rice Krispie base a day in advance and store it wrapped tightly in plastic wrap at room temperature. Just decorate them on the day you plan to serve them to keep the frosting fresh!
What Can I Use if I Don’t Have Gel Food Coloring?
If you don’t have gel food coloring, liquid food coloring will work in a pinch! However, you may need to use a bit more to achieve the desired color intensity. Just be careful not to make the frosting too runny!



