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Peanut Butter Brownies Recipe

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4.2 from 5 reviews

These Peanut Butter Brownies are rich, fudgy, and chewy, offering a delightful combination of chocolate and peanut butter flavors in every bite. Easy to make with basic ingredients and no special equipment, these brownies are perfect for a delicious homemade treat.

Ingredients

Chocolate Batter

  • 1 cup unsalted butter (227g)
  • 1 cup semisweet chocolate chips, divided (175g)
  • 1¼ cups all-purpose flour (150g)
  • ½ cup unsweetened cocoa powder (50g)
  • 1 teaspoon salt
  • 1 cup granulated sugar (200g)
  • 1 cup firmly packed light brown sugar (220g)
  • 3 large eggs
  • 1 tablespoon vanilla flavoring

Peanut Butter Swirl

  • ½ cup creamy peanut butter

Instructions

  1. Preheat and Prepare Pan: Preheat your oven to 350°F (175°C). Spray an 8×8-inch square baking dish with baking spray and line it with parchment paper to prevent sticking and for easy removal.
  2. Melt Butter and Chocolate: In a small saucepan over medium heat, melt the butter. Remove from heat and whisk in ½ cup of semisweet chocolate chips until completely melted and smooth. Transfer this mixture to a large bowl and let it cool slightly to avoid cooking the eggs later. Alternatively, melt butter in the microwave and stir in chocolate chips until smooth.
  3. Mix Dry Ingredients: In a separate bowl, sift together the all-purpose flour, cocoa powder, and salt. Whisk to combine evenly.
  4. Combine Wet Ingredients: To the cooled chocolate mixture, whisk in the granulated sugar, light brown sugar, eggs, and vanilla flavoring until the batter is smooth and glossy.
  5. Fold in Dry Ingredients and Remaining Chocolate: Gently fold the flour and cocoa powder mixture into the wet ingredients until just combined. Then fold in the remaining ½ cup of semisweet chocolate chips evenly throughout the batter.
  6. Prepare Peanut Butter Swirl: Pour the batter into the prepared baking pan, spreading it evenly with a spatula up to the edges. Drop spoonfuls (teaspoon-sized) of creamy peanut butter on top of the batter across the surface. Use the tip of a knife or a skewer to swirl the peanut butter into the chocolate batter, creating a marbled pattern.
  7. Bake: Bake in the preheated oven for 40 to 45 minutes, or for a fudgier center, bake for about 35 minutes. Around 25 minutes into baking, if the peanut butter begins to brown too much, cover the brownies loosely with foil to prevent over-browning (note that this may increase total bake time by 5 to 10 minutes).
  8. Cool and Slice: Once baked, check the center for slight wobble when gently shaking the pan; this signals fudgy brownies. Remove from oven and allow the brownies to cool completely in the pan before slicing into 12 servings.

Notes

  • Use room temperature eggs to ensure they mix smoothly into the batter and help achieve the right texture. To quickly bring eggs to room temperature, place them in a bowl of warm water for a few minutes before using.
  • Covering the brownies partway through baking helps prevent the peanut butter from browning too much.
  • Allowing the brownies to cool completely helps them set properly for clean slices.