I have combined two of my favorite desserts! Rice Krispie Treats and Monster Cookies! Your friends and family will go nuts for these at your next gathering!
Prep time: 10 minutes
Total time: 40 minutes
These no-bake monster Rice Krispie treats have all your favorite monster cookie flavors, but they’re made together in a pan and look so much fun! You only need a few ingredients and minutes to make this easy dessert recipe! These are kid-friendly activities that children can help with!
Ingredients
Ingredients
4.5 cups of Rice Krispies Cereal – you can use a name-brand or generic rice cereal.
1.5 cups of quick-cooking oats – please use quick-cooking oats.
1/2 cup of butter– you will want to cut up the butter into slices, so it melts evenly in your saucepan.
16-ounce package of marshmallows– both small and large marshmallows will work
One cup of smooth peanut butter– use no-stir peanut butter.
1/2 cup of mini chocolate chips
3/4 cup of M&M’s – you can use any color combination of M&M’s!
1/2 teaspoon salt
Optional Ingredient Add-Ins: Raisins, coconut, chopped peanuts, butterscotch chips, peanut butter chips, sprinkles, or dried cranberries. You can also consider seasonal add-ins like candy corn in October.
Instructions
1. Grease a 9 x 13 pan
2. Place Rice Krispies, quick oats, chocolate chips, 1/2 the M&M’s, and salt in a bowl and toss.
3. In a large saucepan, melt butter, peanut butter, and marshmallows until the marshmallows are completely melted.
4. Pour melted butter/marshmallow mixture over the cereal mixture and toss until the cereal and oats are evenly coated. Add additional M&M’s and other add-ins, like dried fruit or raisins.
5. Using a greased spatula, press everything into the 9 X 13 pan. Let the cereal treats sit for at least 30 minutes before cutting them into squares.

Monster Rice Krispie Treats
I have combined two of my favorite desserts! Rice Krispie Treats and Monster Cookies! Your friends and family will go nuts for these at your next gathering!
Ingredients
- 4.5 cups Rice Krispies Cereal
- 1.5 cups quick-cooking oats
- 1/2 cup butter
- 1 16 ounce package mini marshmallows
- 1 cup smooth peanut butter
- 1/2 cup mini chocolate chips
- 3/4 cup M&M's
- 1/2 teaspoon salt
Instructions
-
Grease a 9 x 13 pan
-
Place Rice Krispies, quick oats, chocolate chips, 1/2 the M&M's, and salt in a bowl and toss.
-
In a large saucepan, melt butter, peanut butter, and marshmallows until the marshmallows are completely melted.
-
Pour melted butter/marshmallow mixture over the cereal mixture and toss until the cereal and oats are evenly coated. Add additional M&M's and other add-ins, like dried fruit or raisins if desired
-
Using a greased spatula, press everything into the 13X9 pan. Let the cereal treats sit for at least 30 minutes before cutting them into squares.
Storage
Store between layers of wax or parchment paper in an airtight container for up to five days.
These monster rice krispie treats are great for birthdays, Valentine’s Day, or any other holiday season. There are always seasonal M&M’s at the grocery store for any event! These are different from the classic Rice Krispies treats Mom used to make!
Did you make these monster Rice Krispie Treats? I would love to hear how they turned out for you! Please comment below this blog post or on social media, and let me know how these turned out for you! You can find me on Facebook, Instagram, Twitter, and Pinterest.





