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"Close-up image of a batch of peanut butter brownies with a stack of three in the middle, accompanied by a spoonful of peanut butter beside it.

Peanut Butter Brownies

Shruthi
Quick and easy peanut butter brownies made with a mix, egg, and oil. Swirl in creamy peanut butter for extra indulgence. Ready in 30 minutes!
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Prep Time 10 minutes
Cook Time 18 minutes
Cooling Time 15 minutes
Total Time 43 minutes
Course Dessert
Cuisine American
Servings 9 brownies

Equipment

  • 1 8x8 inch baking pan

Ingredients
  

  • 1 box brownie mix any brand
  • 1 large egg
  • 2 tablespoons water
  • 2 tablespoons vegetable oil
  • 3 tablespoons creamy peanut butter

Instructions
 

  • Preheat the oven to 320°F (160°C). Line an 8x8-inch baking pan with parchment paper.
  • In a large mixing bowl, combine the brownie mix, egg, water, and vegetable oil. Whisk or beat with an electric mixer until smooth.
  • Pour the batter evenly into the prepared baking pan.
  • Drizzle the peanut butter over the batter. Use a knife to swirl the peanut butter into the brownie batter gently.
  • Bake for 15–18 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs.
  • Let the brownies cool in the pan on a wire rack for about 15 minutes before slicing into squares and serving.

Notes

  • For fudgier brownies, avoid overbaking.
  • Store brownies in an airtight container at room temperature for up to 3 days.
  • Refrigerate leftovers for a firmer texture if desired.