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4.75 from 8 votes

Ultimate Peanut Butter Brownies

Fudgy, peanut butter filled and addicting these Ultimate Peanut Butter Brownies are one of the best and easiest brownie recipes you will ever see!
Prep Time1 hr 10 mins
Cook Time22 mins
Total Time1 hr 32 mins
Course: Dessert
Cuisine: American
Servings: 15 brownies
Calories: 187kcal


  • 1 box Fudge brownie mix
  • 1/2-1 cup mini chocolate chips
  • 1/4 cup butter softened
  • 3/4 cup creamy peanut butter
  • 1 1/2 cup powdered sugar
  • 2-3 Tbs heavy cream
  • 1 container milk chocolate frosting
  • Powdered sugar for dusting


  • Preheat oven to 350.
  • Mix together ingredients called for on back of brownie box then fold in 1 cup mini chocolate chips and bake according to package direction.
  • Meanwhile in bowl beat together peanut butter and butter until smooth, slowly add in your powdered sugar until combined.
  • Add in heavy cream a little bit at a time until you reach spreading consistency.
  • Once brownies are down remove from oven and immediately spread with peanut butter mixture and set aside.
  • Remove top and tin lid from chocolate frosting and place in microwave and heat for about 1 minute and then stir, return to microwave and heat in 30 second increments until smooth.
  • Pour over peanut butter layer and spread evenly over the top with an offset spatula.
  • Refrigerate for about one hour until set.
  • Sprinkle with powdered sugar if desired, cut and serve.


Calories: 187kcal | Carbohydrates: 18g | Protein: 3g | Fat: 11g | Saturated Fat: 4g | Cholesterol: 11mg | Sodium: 91mg | Potassium: 83mg | Fiber: 0g | Sugar: 16g | Vitamin A: 2.7% | Calcium: 1.5% | Iron: 1.8%