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Brownie Bomb Bars

Indulge in layers of chewy brownie, creamy marshmallow, and a crunchy chocolate-peanut butter topping that make up these Brownie Bomb Bars. Perfect for birthdays, gatherings, or simply elevating your dessert game, this treat is nothing short of decadent.
4.57 from 16 votes
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Course: Desserts
Cuisine: American
Prep Time: 20 minutes
Cook Time: 30 minutes
Cooling & Chilling Time: 2 hours 40 minutes
Total Time: 3 hours 30 minutes

Equipment

  • 9x13-inch baking pan
  • Microwave-safe bowl
  • Mixing spoons
  • Aluminum foil or parchment paper
  • Cooking spray

Ingredients

Brownie Layer

  • 1 box of your favorite brownie mix
  • Eggs oil, and water as per brownie mix instructions (reduce oil by 20%)

Marshmallow Layer

  • 1 jar 7 oz. marshmallow cream
  • Chocolate-Peanut Butter Crunch Layer
  • 1 cup semi-sweet chocolate chips
  • 1 cup peanut butter
  • 3 cups Rice Krispies

Instructions

  • Preheat & Prep: Preheat your oven according to the brownie mix instructions. Line a 9x13-inch pan with aluminum foil or parchment paper and lightly spray with cooking oil.
  • Brownie Base: Prepare the brownie batter as per the box instructions, but reduce the amount of oil by 20%. Pour into the prepared pan and bake. Once done, allow the brownies to cool completely.
  • Marshmallow Magic: Gently spread the jar of marshmallow cream evenly over the cooled brownies.
  • Chocolate-Peanut Butter Bliss: In a microwave-safe bowl, combine the chocolate chips and peanut butter. Melt in the microwave in one-minute increments, stirring after each minute until smooth.
  • Crunch Time: Mix in the Rice Krispies into the melted chocolate-peanut butter mixture until well incorporated.
  • Final Assembly: Evenly spread the chocolate-peanut butter crunch layer over the marshmallow layer. Use a spatula to smooth out the surface.
  • Chill: Place the assembled dessert in the refrigerator for at least 2 hours to set.
  • Slice & Serve: After chilling, remove from the fridge and cut into bars. Serve chilled or at room temperature.

Serving Suggestions

  • Serve alongside a scoop of vanilla ice cream, or enjoy them as is for a luxurious treat that will have you coming back for seconds, or thirds!

Notes

  • For a richer flavor profile, consider using dark chocolate chips or adding a dash of sea salt on the final layer before chilling.
  • Health-conscious? Opt for almond butter and a gluten-free brownie mix.