Peanut Butter Swirl Brownies

These fudgy brownies are swirled with creamy peanut butter for the perfect chocolate and nutty treat. Rich, soft, and delicious—ideal for any dessert craving!
Why You’ll Love These Brownies
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Fudgy and rich texture
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Perfect peanut butter and chocolate swirl
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Easy to make with simple ingredients
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Bite-sized, perfect for sharing
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Great fresh or slightly warmed
Ingredients
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2 large eggs
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1 cup granulated sugar
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½ cup brown sugar
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½ cup vegetable oil
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1 teaspoon vanilla extract
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⅔ cup cocoa powder
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1 cup all-purpose flour
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¼ teaspoon salt
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½ teaspoon baking powder
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1 teaspoon instant coffee powder (optional)
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½ cup creamy peanut butter (room temperature)
Prep Time: 10 minutes
Chill Time: 30 minutes
Bake Time: 10–12 minutes
Total Time: About 55 minutes
Yields: About 24 cookies
Directions
Step 1: Preheat and Prepare Baking Sheets
Preheat oven to 350°F (175°C). Line two large baking sheets with parchment paper or silicone baking mats.
Step 2: Mix Wet Ingredients
In a large bowl, whisk together eggs, granulated sugar, brown sugar, vegetable oil, and vanilla extract until smooth and fluffy, about 2 minutes.
Step 3: Add Dry Ingredients
Sift cocoa powder, flour, salt, baking powder, and instant coffee powder (if using) into the wet mixture. Gently fold until just combined—do not overmix.
Step 4: Rest the Batter
Cover the bowl and let the batter rest at room temperature for 30 minutes to firm up slightly.
Step 5: Prepare Peanut Butter
Stir the peanut butter until smooth and pourable.
Step 6: Scoop Dough onto Baking Sheets
Using a tablespoon or small cookie scoop, drop dough onto the prepared baking sheets, spacing each about 2 inches apart.
Step 7: Add and Swirl Peanut Butter
Drop about ½ teaspoon of peanut butter on top of each dough mound. Use a toothpick or skewer to swirl the peanut butter gently into the dough, creating pretty swirl patterns without overmixing.
Step 8: Bake
Bake for 10–12 minutes, until the edges are set but the centers remain soft.
Step 9: Cool and Serve
Let the cookies cool on the baking sheets for 5 minutes, then transfer to a wire rack to cool completely. Best enjoyed fresh and fudgy!
Tips & Variations
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Use crunchy peanut butter for extra texture
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Add chopped peanuts or chocolate chips to the batter
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Substitute almond or cashew butter for a twist
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For a mocha flavor, definitely add the instant coffee powder
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Store leftovers in an airtight container at room temperature for up to 3 days
Frequently Asked Questions
Can I make these without instant coffee?
Yes! The coffee enhances the chocolate flavor but is completely optional.
Can I use natural peanut butter?
You can, but it may be less smooth and swirl differently—make sure it’s well stirred.
How do I store these brownies?
Keep them in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.
Final Thoughts
Peanut Butter Swirl Brownies combine two classic flavors in a rich, fudgy cookie that’s easy to make and impossible to resist. Perfect for dessert, snacks, or sharing with friends!