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–+ servings
Stack of three fudgy peanut butter brownies with chocolate chips and a sprinkle of sea salt, placed on parchment paper.

Peanut Butter Brownies

Charlotte
These peanut butter brownies are rich, fudgy, and perfectly swirled with creamy peanut butter. They’re simple to make and perfect for chocolate and peanut butter lovers. Ideal for family gatherings, parties, or a sweet treat at home.
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Prep Time 15 minutes
Cook Time 30 minutes
Cooling Time 20 minutes
Total Time 1 hour 5 minutes
Course Dessert
Cuisine American
Servings 16 brownies
Calories 250 kcal

Equipment

Ingredients
  

For the Brownie Base:

  • ½ cup unsalted butter, melted
  • ½ cup granulated sugar
  • ½ cup packed brown sugar
  • 2 large eggs
  • 1 tsp vanilla extract
  • ½ cup cocoa powder
  • ¾ cup all-purpose flour
  • ¼ tsp salt
  • ½ cup chocolate chips Optional

For the Peanut Butter Swirl:

  • ½ cup creamy peanut butter
  • 2 tbsp powdered sugar
  • 1 tbsp milk or heavy cream

Instructions
 

Preheat the Oven:

  • Preheat oven to 350°F (175°C).
  • Line an 8×8-inch baking pan with parchment paper, leaving an overhang.

Make the Brownie Batter:

  • In a large mixing bowl, whisk melted butter, granulated sugar, and brown sugar until smooth.
  • Add eggs and vanilla extract; whisk until combined.
  • Sift in cocoa powder, flour, and salt. Gently fold the dry ingredients into the wet mixture.
  • Optional: Stir in chocolate chips.

Prepare the Peanut Butter Swirl

  • In a small bowl, mix peanut butter, powdered sugar, and 1 tablespoon of milk until smooth.
  • Add more milk if needed to reach a spreadable consistency.

Assemble the Brownies:

  • Pour brownie batter into the prepared pan and spread evenly.
  • Drop spoonfuls of peanut butter mixture on top.
  • Use a knife or skewer to gently swirl the peanut butter into the brownie batter.

Bake the Brownies:

  • Bake for 25–30 minutes until the center is set and a toothpick inserted comes out with moist crumbs.
  • Allow to cool in the pan for at least 20 minutes.
  • Chill in the refrigerator for 15–20 minutes before slicing for cleaner cuts.

Serve:

  • Slice into squares and serve. Enjoy warm or at room temperature.

Notes

  • For best results, use smooth, creamy peanut butter.
  • Avoid overbaking for fudgy brownies.
  • Sprinkle extra chocolate chips or sea salt on top before baking for added flavor.

Nutrition

Calories: 250kcalCarbohydrates: 28gProtein: 4gFat: 13gSaturated Fat: 5gCholesterol: 35mgSodium: 100mgFiber: 2gSugar: 20g
Keyword Peanut Butter Brownies
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