These brownies will be a favorite with anyone who loves chocolate and marshmallows. Sure to be a hit at any social gathering.

Recipe Summary

20 mins
20 mins
30 mins
1 hr 10 mins
1 9x13-inch pan


Original recipe yields 18 servings
The ingredient list now reflects the servings specified
Ingredient Checklist


Instructions Checklist
  • Preheat oven to 350 degrees F (175 degrees C). Grease a 9x13-inch baking pan.

  • Sift flour, cocoa powder, baking powder, and salt together in a large bowl. Beat sugar, butter, and vanilla extract together in a separate bowl; beat in eggs, one at a time, until sugar mixture is smooth. Stir flour mixture into sugar mixture until incorporated. Spread batter into the prepared baking pan.

  • Bake in the preheated oven until a toothpick inserted in the center of the brownies comes out clean, about 20 minutes.

  • Mix peanut butter and chocolate chips together in a microwave-safe bowl; heat in microwave until chocolate chips are melted, stirring every 30 seconds, 1 to 2 minutes. Fold crispy rice cereal into peanut butter mixture; heat in microwave until mixture smooth and spreadable, about 30 seconds.

  • Sprinkle brownies with marshmallows and bake until marshmallows are slightly cooked, 2 minutes. Pour chocolate mixture evenly over marshmallows. Allow to cool completely before cutting into squares.

Nutrition Facts

276 calories; protein 5.9g 12% DV; carbohydrates 30.8g 10% DV; fat 15.9g 24% DV; cholesterol 34.2mg 11% DV; sodium 180.1mg 7% DV. Full Nutrition

Reviews (4)

Read More Reviews

Most helpful positive review

Rating: 5 stars
These brownies are perfect! Read More
7 Ratings
  • 5 star values: 4
  • 4 star values: 3
  • 3 star values: 0
  • 2 star values: 0
  • 1 star values: 0
Rating: 5 stars
Delicious! Very rich and goes well with a big cold glass of milk. Read More
Rating: 4 stars
Liked the variety of flavors/textures. Hubby said the rice cereal is what made it for him. Read More
Rating: 5 stars
These brownies are perfect! Read More
Rating: 4 stars
In the middle of making this (marshmallow part on brownie) my husband came in the kitchen and said with such enthusiasm "HOLY COW! What's that?!!"turned out pretty recommendations: only cook brownie until 16-17 minutes. Make sure pan is sprayed well as my brownie stuck. I found the peanut a bit overpowering but my husband couldn't stop! Read More