Chocolate Peanut Butter Marshmallow Brownies

A few squares of brownies stacked up on top of each other.

Chocolate Peanut Butter Marshmallow Brownies

Fudgy brownies topped off with marshmallow frosting and a crunchy chocolate peanut butter topping!

Course Dessert

Cuisine American

Prep Time 20

Cook Time 30

Chill Time 2

Total Time 50

Servings brownies

Calories 681kcal

Author Karly Campbell

Ingredients

For the brownies

1 batch brownies for 13x9 pan baked and cooled

For the marshmallow frosting

1 cup butter
7 ounces marshmallow fluff
1 cup powdered sugar
1 teaspoon vanilla

For the crunchy topping

1 ½ cups chocolate chips
1 cup peanut butter
3 cups rice krispies cereal

Instructions

Bake and cool the brownies in a 13x9 baking dish using a box mix or our homemade recipe.
Add the butter, marshmallow fluff, powdered sugar, and vanilla to a medium mixing bowl and mix on low speed until well combined and fluffy.
Spread marshmallow frosting over the cooled brownies.
Add the chocolate chips and peanut butter to a small bowl and microwave in 30 second bursts until melted. Stir well.
Pour chocolate and peanut butter over the rice krispies cereal and stir to coat.
Spread the cereal mixture over the frosted brownies.
Cover and place in the refrigerator for 2 hours to chill.
Cut into 16 slices and serve.

Video

Notes

We highly recommend using our recipe for homemade brownies, but a box mix will work as well. Just be sure to use a family size mix that's meant to be baked in a 9x13 (or make a double batch of regular brownie mix and add it all to the one pan) or your brownies will be too thin and the ratio of marshmallow and topping will be off.

Nutrition