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peanut butter brownies
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4 from 6 votes

Peanut Butter Brownies

These peanut butter brownies are going to be your new favorite recipe. Not just because it's decadently delicious, but because it is so easy to make! Think Reese's Peanut Butter Cups and you'll be on the right track.
Prep Time30 mins
Cook Time45 mins
Course: Dessert
Cuisine: American
Keyword: peanut butter brownies
Servings: 30 servings
Calories: 327kcal
Author: Kelly Stilwell


Bar Recipe

  • 1 box chocolate cake mix
  • 1 egg room temp
  • 8 TBSP unsalted butter melted

Filling Recipe

  • 1 Package soft cream cheese
  • 1 C creamy peanut butter
  • 3 eggs room temp
  • 1 tsp vanilla
  • 8 TBSP unsalted butter melted
  • 16 oz powdered sugar

Chocolate Ganache Recipe

  • 1 ½ C semi-sweet chocolate chips
  • 1 ½ C heavy whipping cream


Bar Directions

  • Preheat oven to 350 degrees.
  • Grease a 9 X 13 baking pan with a baking spray.
  • In a medium bowl add the cake mix, egg, and butter beating well with an electric mixer.
  • Using your hands pat the mixture into the bottom of the pan.

Filling Directions

  • Beat cream cheese and peanut butter together with a Hand Mixer until smooth.
  • Add in eggs, vanilla, and butter beating until well combined.
  • Add in powdered sugar, beating well.
  • Using a spatula spread this mixture over the unbaked cake batter.
  • Bake at 350 degrees for 40- 50 minutes. Be sure to check the bars about 10 minutes before. Different brand/model ovens may have slightly different temperature results.
  • Allow to cool in pan slightly before adding the chocolate topping.

Ganache Directions

  • Using a Double Boiler, bring water to a boil. Remove from heat.
  • Pour in the heavy whipping cream bringing to a simmer.
  • Put chocolate chips in a bowl.
  • Pour the heated heavy whipping cream over the chocolate chips.
  • Make sure that the heavy cream covers all of the chocolate chips.
  • Allow time for the chocolate chips to melt.
  • Using a whisk gently whisk to incorporate the melted chocolate with the heavy whipping cream.
  • Spread over the Ooey Gooey cake using a spoon or a spatula.
  • Allow peanut butter brownies to cool before cutting into bars.


Serving: 1 | Calories: 327kcal | Carbohydrates: 32g | Protein: 5g | Fat: 21g | Saturated Fat: 10g | Cholesterol: 55mg | Sodium: 173mg | Potassium: 171mg | Fiber: 2g | Sugar: 24g | Vitamin A: 400IU | Vitamin C: 1mg | Calcium: 44mg | Iron: 1mg