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Peanut Butter Streusel Brownies Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.1 from 37 reviews
  • Author: Chef
  • Prep Time: 15 minutes
  • Cook Time: 40-45 minutes
  • Total Time: 55-60 minutes
  • Yield: 16 brownies
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Description

These Peanut Butter Streusel Brownies are a decadent treat combining rich, fudgy chocolate brownie base with swirls of creamy peanut butter and a crunchy, buttery streusel topping. Perfectly balanced in sweetness and texture, they make a delightful dessert or snack for peanut butter and chocolate lovers.


Ingredients

Brownie Batter

  • 1 cup Butter, melted
  • 2 cups Granulated Sugar
  • 2 teaspoons Pure Vanilla Extract
  • 1/4 teaspoon Salt
  • 4 Eggs
  • 1 1/4 cups Unsweetened Cocoa Powder
  • 1/2 cup All-Purpose Flour

Peanut Butter Swirl

  • 1/2 cup Creamy Peanut Butter, melted

Streusel Topping

  • 1/2 cup All-Purpose Flour
  • 2 tablespoons Brown Sugar
  • 2 tablespoons Granulated Sugar
  • 1/3 cup Creamy Peanut Butter, melted
  • 2 tablespoons Butter, melted


Instructions

  1. Preheat Oven: Preheat your oven to 350°F (175°C), ensuring it reaches the correct temperature for even baking.
  2. Mix Wet Ingredients: In a large bowl, whisk together the melted butter, granulated sugar, vanilla extract, and salt until combined and smooth.
  3. Add Eggs: Incorporate the eggs one at a time into the butter mixture, whisking thoroughly after each addition to ensure a smooth batter.
  4. Combine Dry Ingredients: Add the cocoa powder and 1/2 cup of all-purpose flour to the wet mixture and whisk until just combined, being careful not to overmix to maintain brownie texture.
  5. Prepare Baking Pan: Line a 9-inch square baking pan with foil, letting the foil overhang the edges for easy removal. Spray the foil with non-stick spray to prevent sticking.
  6. Spread Batter: Pour the brownie batter evenly into the prepared pan, smoothing the top with a spatula.
  7. Add Peanut Butter Swirl: Drizzle the melted peanut butter over the brownie batter and use a knife to gently swirl it through the batter to create a marbled effect.
  8. Make Streusel Topping: In a small bowl, combine the remaining 1/2 cup flour, brown sugar, granulated sugar, melted peanut butter, and melted butter. Stir until the mixture becomes crumbly and well blended.
  9. Top Brownies: Sprinkle the peanut butter streusel evenly over the swirled brownie batter in the pan.
  10. Bake: Bake in the preheated oven for 40-45 minutes, or until a toothpick inserted near the center comes out mostly clean with a few moist crumbs attached.
  11. Cool and Serve: Remove the brownies from the oven and place on a wire rack to cool completely. Once cooled, use the foil overhang to lift the brownies out and cut into bars to serve.

Notes

  • For best swirl definition, make sure the peanut butter is melted but not overly hot when mixing into the batter and streusel.
  • Do not overbake to maintain moist, fudgy brownies; start checking at 40 minutes.
  • Line the pan with foil for easy removal and cleaner slicing.
  • Use creamy peanut butter for smooth swirling effects and easier mixing.
  • Store brownies in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.