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If you’re craving something sweet, chocolatey, and perfectly indulgent, this peanut butter brownies recipe will hit the spot. Rich, fudgy, and swirled with creamy peanut butter, these brownies are the ultimate dessert for chocolate and peanut butter lovers.
They come together in just one bowl, bake in under 30 minutes, and deliver bakery-level results every time!
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Why You’ll Love This Peanut Butter Brownies Recipe
Fudgy and rich: Soft, dense, and irresistibly moist inside.
Quick and easy: No mixer required — just a whisk and a bowl.
Beautiful presentation: Peanut butter swirls make every brownie look stunning.
Perfect for any occasion: From bake sales to cozy nights at home.
Ingredients
You’ll need just a handful of everyday ingredients for this simple peanut butter swirl brownies recipe:
- ½ cup unsalted butter, melted
- 1 cup granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- ⅓ cup unsweetened cocoa powder
- ½ cup all-purpose flour
- ¼ teaspoon salt
- ¼ teaspoon baking powder
- ⅓ cup peanut butter (creamy or crunchy)
How to Make Peanut Butter Brownies
1. Preheat the Oven
Preheat your oven to 350°F (175°C). Line an 8×8-inch baking pan with parchment paper or lightly grease it.
2. Mix the Wet Ingredients
In a medium bowl, whisk together the melted butter and sugar until smooth. Add the eggs and vanilla extract, and whisk until fully combined.
3. Combine the Dry Ingredients
In a separate bowl, mix the cocoa powder, flour, salt, and baking powder. Gradually fold the dry ingredients into the wet mixture — don’t overmix to keep your brownies fudgy!
4. Add the Peanut Butter Swirl
Spread the brownie batter evenly into your pan. Warm the peanut butter for about 10–15 seconds in the microwave to make it easier to swirl. Drop spoonfuls over the batter and use a knife or toothpick to create a marbled effect.
5. Bake
Bake for 20–25 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs. Avoid overbaking!
6. Cool and Slice
Allow brownies to cool in the pan for 15 minutes before cutting into squares. Enjoy warm or at room temperature.
Optional Add-Ins & Variations
Take your brownies up a notch with these tasty ideas:
- Extra chocolate: Stir in ½ cup of chocolate chips.
- Nutty crunch: Add chopped walnuts or peanuts.
- Salted caramel swirl: Drizzle caramel sauce with the peanut butter.
- Espresso boost: Add 1 teaspoon of instant espresso powder.
- Reese’s twist: Fold in chopped peanut butter cups for an indulgent treat.
Storage Tips
Store brownies in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.
For longer storage, freeze for up to 2 months and thaw before serving.
Final Thoughts
These fudgy peanut butter brownies are the perfect mix of rich chocolate and creamy peanut butter — simple to make, gorgeous to serve, and completely irresistible. Whether for a bake sale, dinner party, or late-night craving, this recipe will never disappoint.
Grab a cold glass of milk, cut yourself a generous square, and enjoy pure chocolate-peanut butter bliss.