Go Back
+ servings
Close-up of dense brownies showing a rich, moist texture and glossy surface.

Peanut Butter Brownies

Soft and chewy Peanut Butter Brownies made with peanut butter, butter, flour, eggs, brown sugar, granulated sugar, vanilla, baking soda, and salt.
Print Pin
Course: Dessert
Cuisine: American
Keyword: Peanut Butter Brownies
Prep Time: 15 minutes
Cook Time: 35 minutes
Total Time: 50 minutes
Servings: 8

Ingredients

  • 1/4 tsp salt
  • 1 tsp baking soda
  • 1 c all-purpose flour
  • 2/3 c granulated sugar
  • 1/2 c packed brown sugar
  • 2 large eggs
  • 1/2 tsp vanilla extract
  • 1/2 c peanut butter
  • 1/3 c butter softened

Instructions

Preheat the oven.

  • Preheat the oven to 350°F.

Prepare the baking pan.

  • Grease a 9 x 9-inch baking pan thoroughly to prevent sticking.

Combine the peanut butter and butter.

  • In a large mixing bowl, add the peanut butter and softened butter. Beat until smooth and fully combined.

Add the sugars, eggs, and vanilla.

  • Gradually add the packed brown sugar, granulated sugar, eggs, and vanilla extract. Beat until the mixture is light, fluffy, and evenly incorporated.

Add the dry ingredients.

  • Add the all-purpose flour, baking soda, and salt to the peanut butter mixture. Mix until just combined and no dry streaks remain.

Transfer the batter to the pan.

  • Spread the batter evenly into the prepared 9 x 9-inch baking pan, smoothing the top with a spatula.

Bake the brownies.

  • Bake for 30 to 35 minutes, or until the top springs back lightly when touched.

Cool the brownies.

  • Remove the pan from the oven and set it aside to cool completely.

Slice and serve.

  • Once cooled, cut the brownies into 16 squares and serve.

Notes

To make these Peanut Butter Brownies gluten free, replace the all-purpose flour with a 1:1 gluten-free baking flour blend. Confirm that the peanut butter, baking soda, vanilla extract, sugars, butter, and salt are certified gluten free or labeled gluten free. Use clean baking tools, bowls, and a prepared pan to prevent cross-contact with gluten-containing ingredients.