Ooey Gooey Peanut Butter and Chocolate Pebbles Brownie Bars

Calling all lovers of sweet chocolaty goodness! This mouth-watering, ooey gooey bar is the perfect combination of chewy brownies and the new Peanut Butter and Chocolate Pebbles cereal…it doesn’t get any better, I promise!

Author: Khrista Helfer
Prep Time: 10 minutes
Cook Time: 45 minutes
Total Time: 55 minutes
Course: Dessert
Cuisine: American
Servings: 16 servings
Ooey Gooey Chocolate Peanut Butter Brownie Bars square
5 from 4 votes


  • 1 Box Store-bought brownie mix
  • 7 oz. Marshmallow cream
  • 1-1/2 Tbsp. Butter, unsalted
  • 3 cups Peanut Butter and Chocolate Pebbles
  • 3-1/2 cups Mini marshmallows


  1. Make brownies in 8x8 pan according to box directions.

  2. Remove the brownies from the oven and while hot, drop spoonfuls of marshmallow cream on top.

  3. Allow the marshmallow cream to melt and spread. If cream doesn’t completely melt, lightly cover dish with sheet of foil for few minutes to trap heat and help the melting process.

  4. For the top Pebbles layer, microwave butter in a large bowl for 20 seconds until melted.

  5. Microwave for 45-50 seconds and stir until smooth. (Microwave for an additional 20-30 seconds if marshmallows don’t completely melt.)

  6. Mix in Peanut Butter and Chocolate Pebbles cereal.

  7. Drop large spoonfuls of Pebbles mix on top of marshmallow cream and spread out evenly. Use a disposable glove coated with cooking spray to help spread and pat down the mixture.

  8. Allow bars to completely cool and set before cutting. Ooey gooey middle may spread when cut if not completely cooled.

Nutrition per serving

Calories: 226kcal
Fat: 4g
Saturated fat: 1g
Sodium: 144mg
Potassium: 12mg
Carbohydrates: 45g
Sugar: 28g
Protein: 1g
Vitamin A: 200%
Calcium: 2%
Iron: 1.4%
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