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–+ servings
Stack of two peanut butter brownies.
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5 from 19 reviews

Peanut Butter Brownies

These peanut butter brownies are fudgy chocolate brownies with chocolate chips with frozen peanut butter dollops mixed in to get these pockets of peanut butter.
Prep Time40 minutes
Cook Time40 minutes
Chilling Time30 minutes
Total Time1 hour 50 minutes
Servings: 16 pieces
Calories: 393kcal
Author: Stephanie Rutherford

Ingredients

Peanut Butter Filling

  • 1 cup Peanut butter creamy Jif or Skippy
  • 1/2 cup Powdered sugar sifted

Brownies

  • 1 cup All-purpose flour
  • 1 cup Dutch process cocoa powder
  • 1 TBSP Cornstarch
  • 1 tsp Salt
  • 1 1/2 cups White granulated sugar
  • 1/4 cup Powdered sugar
  • 3 Large eggs
  • 1 Egg yolk
  • 1/2 cup Unsalted butter melted
  • 1/2 cup Oil vegetable or canola oil
  • 1 tsp Pure vanilla extract
  • 1 cup Semi-sweet chocolate chips
US - Metric

Instructions

Peanut Butter Filling

  • In a microwave safe bowl, heat the peanut butter for 30 seconds until melted. Add the sifted powdered sugar and mix until combined.
    1 cup Peanut butter, 1/2 cup Powdered sugar
  • Spray a cookie sheet with nonstick spray and line with wax paper. Use a 1/2 TBSP to dollop the peanut butter. Use it all. Freeze for at least 30 minutes or overnight.

Brownies

  • Preheat oven to 350°F. Spray a 9X9 inch pan with baking non-stick spray. Line the bottom and 2 sides of the pan with parchment paper and spray again. Set aside.
  • In a medium bowl, sift the flour and cocoa powder. Then, add in cornstarch and salt. Melt the butter in the microwave, then let it cool.
    1 cup All-purpose flour, 1 cup Dutch process cocoa powder, 1 TBSP Cornstarch, 1 tsp Salt
  • Using a mixer, beat the sugar, powdered sugar, eggs, and egg yolk on high speed. Beat for 3 minutes, it will become very pale in color. This helps give the brownies a crinkle top.
    1 1/2 cups White granulated sugar, 3 Large eggs, 1 Egg yolk, 1/4 cup Powdered sugar
  • Add in melted butter, oil, and vanilla. Mix on low speed until just combined. Add in the dry ingredients and mix on low speed until just combined. Use a rubber spatula and scrape the bowl gently.
    1/2 cup Unsalted butter, 1/2 cup Oil, 1 tsp Pure vanilla extract
  • Add in chocolate chips and frozen peanut butter dollops. Fold with a rubber spatula.
    1 cup Semi-sweet chocolate chips
  • Pour the brownie batter into the prepared pan.
  • Bake for 38-45 minutes. The brownies are done when edges are set, but the center is barely set. The middle should jiggle. It will keep cooking once pulled out of oven. Let cool completely on a wire rack in the pan before serving.

Notes

Flour- Make sure flour is spooned and leveled or use a kitchen scale. Compacted flour can cause the brownies to be cakey.
High altitude baking- Add an extra 1 TBSP of flour.

Nutrition

Calories: 393kcal | Carbohydrates: 44g | Protein: 6g | Fat: 26g | Saturated Fat: 9g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 12g | Trans Fat: 0.3g | Cholesterol: 28mg | Sodium: 219mg | Potassium: 249mg | Fiber: 4g | Sugar: 25g | Vitamin A: 199IU | Calcium: 26mg | Iron: 2mg