You can get away with only one medium sized bag of M&ms found in the candy aisle, the brown bag. BUT, to get the rainbow effect, pick up two to make sure you have enough of all colors!
Course Dessert
Cuisine Traditional
Prep Time 1hour
Total Time 1hour
Servings 12servings
Calories 253kcal
Ingredients
Rice Krispies Treats:
3Tblsbutterunsalted
6Cupscrispy rice Cereal
4cupsmini marshmallows
Peanut Butter Frosting:
1/4Cupbutterunsalted, softened
1/2Cupcreamy peanut butter
1 1/2Tblsmilk
1/2tspvanilla bean paste or extract
1Cuppowdered sugar
1medium sized bag of m&ms for decoration
Instructions
Rice krispies treats:
Melt butter in a large sauce pot over medium low heat. Add in marshmallows and let melt, stirring constantly. As soon as all the marshmallows have melted, take off the heat and add in the rice cereal. Mix and mix until all the cereal is coated. Spread mix over a sheet tray lined with parchment paper, for easy spreading spray a spatula with cooking spray or your fingers. Form into the shape you wish (try to get a flat surface), set aside, covered with plastic wrap for at least one hour to set.
Peanut Butter Frosting:
Cream together the butter and peanut butter with a hand mixer over medium speed. Add in the powdered sugar until combined. Add in the milk and vanilla. Whip on medium speed until light and fluffy about 3 minutes.
Spread over rice krispies treats in a thin even layer. For the rainbow effect, start in one corner and in alternating colors add rows and rows of m&ms.