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Swirled Peanut Butter Brownies Recipe

Swirled Peanut Butter Brownies Recipe


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4.8 from 17 reviews

  • Total Time: 1 hour - 1 hour 15 minutes
  • Yield: 9 1x

Description

Peanut Butter Brownies combine rich chocolate and creamy peanut butter in a delightful dessert that makes your taste buds dance with pure joy. Swirling together two classic flavors, this treat delivers a perfect balance of sweetness and nutty goodness that will have friends and family begging for seconds.


Ingredients

Scale

Main Ingredients:

  • 2 large eggs
  • ½ cup (115g) unsalted butter, melted
  • ½ cup (50g) unsweetened cocoa powder
  • ¾ cup (95g) all-purpose flour
  • ½ cup (100g) granulated sugar
  • ½ cup (110g) packed brown sugar

Flavor Enhancers:

  • 1 teaspoon vanilla extract
  • ¼ teaspoon salt
  • ½ cup chocolate chips

Peanut Butter Swirl:

  • ½ cup creamy peanut butter
  • 2 tablespoons powdered sugar
  • 12 tablespoons milk

Instructions

  1. Preheat the oven to 350°F (175°C). Prepare an 8×8-inch pan with parchment paper, creating small overhangs for easy removal later.
  2. Melt 115g unsalted butter in a large mixing bowl. Whisk in 100g granulated sugar and 110g brown sugar until the mixture looks smooth and glossy.
  3. Crack 2 large eggs into the sugar mixture. Add 1 tsp vanilla extract and blend thoroughly until completely combined.
  4. Sift 50g cocoa powder, 95g all-purpose flour, and ¼ tsp salt into the wet ingredients. Fold gently with a spatula until no dry streaks remain. Optional: Stir in ½ cup chocolate chips.
  5. In a separate small bowl, combine ½ cup creamy peanut butter with 2 Tbsp powdered sugar. Add 1–2 Tbsp milk to create a spreadable consistency.
  6. Transfer brownie batter to the prepared pan, spreading evenly with a spatula. Dollop peanut butter mixture across the surface.
  7. Use a butter knife to create swirling patterns, mixing the peanut butter through the chocolate batter to achieve a marbled effect.
  8. Bake for 25–30 minutes at 350°F (175°C). Check doneness with a toothpick—it should have a few moist crumbs when removed.
  9. Allow brownies to cool in the pan for 20–30 minutes. Lift out using parchment paper overhangs.
  10. Refrigerate for 15–20 minutes to help achieve clean, precise cuts when slicing into squares.

Notes

  • Check brownie doneness by inserting a toothpick near the center, which should come out with a few moist crumbs.
  • Natural peanut butter works best for maintaining a rich, authentic flavor without excess sweetness.
  • Chill brownies completely before cutting to ensure clean, precise slices and prevent crumbling.
  • For gluten-free options, substitute all-purpose flour with a cup-for-cup gluten-free baking blend to keep the same rich texture.
  • Prep Time: 15 minutes
  • Cook Time: 25-30 minutes
  • Category: Brownies
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 9
  • Calories: 320 kcal
  • Sugar: 25 g
  • Sodium: 120 mg
  • Fat: 20 g
  • Saturated Fat: 5 g
  • Unsaturated Fat: 13 g
  • Trans Fat: 0.1 g
  • Carbohydrates: 29 g
  • Fiber: 3 g
  • Protein: 7 g
  • Cholesterol: 55 mg