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These Fudgy Peanut Butter Swirl Brownies are SO delicious, you might cry. They’re a rich and decadent brownie recipe topped with a gooey peanut butter. Once baked they’re so fudgy and peanut buttery you’ll have to eat more than one.
BEST Peanut Butter Swirl Brownies
I mean…peanut butter. And brownies. Is there anything better? Peanut butter brownies are epic!
This is my standard brownie recipe that I’ve been using for about a year now. You can make them in a 9×13″ pan for a thinner brownie, or in a 9×9″ pan for a thicker and extra super fudgy brownie.
Peanut Butter Brownies Ingredients
- The recipe includes three kinds of chocolate: melted unsweetened and semi-sweet, and cocoa powder. You can use regular cocoa powder, or you can use Dark Cocoa Powder. If you’ve never used Dark – DO IT. It gives it such a rich and fudgy flavor, seriously you’ll cry.
- Lots of butter keeps them moist and rich.
- Eggs give brownies that fudgy gooey texture.
- Peanut Butter – the peanut butter mixture is swirled on top the brownies. Be sure to use a no-stir (not natural) peanut butter.
How to make Peanut Butter Swirl Brownies
- First you’ll make the brownies by mixing all the ingredients in a large bowl. Place the batter into the pan.
- The peanut butter topping is simple to make. It’s made with powdered sugar, peanut butter, butter, and vanilla. The peanut butter mixture by itself tastes like a peanut butter cup.
- Swirl the peanut butter on top and then bake the brownies in a preheated oven.
This is such a great all-purpose brownie recipe – without the peanut butter you can frost them with orange frosting, or coconut frosting. You can stuff them with Oreos or make them into truffles. This is the BEST brownie recipe!
Fudgy Peanut Butter Swirl Brownies
Ingredients
For the Brownies
- 2 ounces (57g) unsweetened baking chocolate coarsely chopped
- 2 ounces (57g) semi-sweet baking chocolate coarsely chopped
- ¾ cup (170g) unsalted butter
- 1 ¾ cups (450g) granulated sugar
- ½ teaspoon salt
- 3 large eggs
- 1 teaspoon vanilla extract
- 2 tablespoons (10g) unsweetened cocoa powder I love using Hershey’s Dark, but you can use either regular or dark
- 1 cup (124g) all-purpose flour
For the peanut butter swirl:
- ½ cup 133g) peanut butter
- 2 tablespoons (28g) unsalted butter melted
- ⅓ cup (38g) powdered sugar
- 1 teaspoon vanilla
Instructions
- Preheat oven to 350F. Line a 9×9” pan with foil and spray with cooking spray.
- Place the two baking chocolates and butter in a large, microwave safe bowl. Heat on HIGH power for 2-3 minutes, stirring every 30 seconds, until chocolate is smooth. Stir in sugar. Add eggs, vanilla, and cocoa and stir well. Add flour and stir carefully. Spread batter in prepared pan.
- Stir together peanut butter, melted butter, powdered sugar, and vanilla. Drop spoonfuls on top of the brownies then swirl with a butter knife or the back of a wooden spoon.
- Bake about 28-30 minutes, until the center seems set. Let cool before cutting. These brownies, baked this way, will be super gooey inside. If you like your brownies more done and less gooey, bake them longer.
Recipe Notes
- You can reduce the sugar in the recipe to 1 1/4 cups – that’s as low as I’ve gone when testing.
- Feel free to use 4 ounces unsweetened baking chocolate. If using 4 ounces semi-sweet baking chocolate, reduce sugar to 1 1/2 cups.
Recipe Nutrition
Brownie Recipes
Last Updated on February 21, 2023
I make these same kind of brownies, but I add cream cheese and an egg to the pb mix and it’s just pure awesomeness. 🙂 I also use regular sugar. I’ve been thinking about maybe using cream cheese and brown sugar to get a cookie type taste. I’m always experimenting with different flavors of the same recipes! 🙂
Oooooh that sounds awesome!
These look amazing! Chocolate and peanut butter are my weakness!
Thanks so much!! Mine too!
Some people are just cray cray! Glad you had these brownies to come home to – seriously, brownie perfection!
Thanks Trish!
DYING over these photos Dorothy! They’re amazing!!
Dorothy! I was seriously freaking out just reading this!! That would have scared the crap outta me!! I’m so glad it just turned out to be weirdo dad, and not a real creeper. These brownies look incredible. Love chocolate and peanut butter!!
Thanks Shawn!
What a CREEEPER!! I would totally freak out, but yes at least you had these to come home to. Seriously these look so rich and fudgy and the peanut butter topping- when you said its like a pb cup I just about died and had to clean off all the drool on my laptop!!
LOL! Thanks Elizabeth!
Peanut butter + chocolate = love. These are mouthwatering, Dorothy! Thanks for sharing this recipe and the great giveaway!
Thanks Georgia!
Haha – I would have totally thought the same thing! What a weirdo…
These brownies look downright dangerous!
Thanks Jennifer!
Love your page!
Thanks Keely!
First off, holy scary incident! I totally would have thought the same thing! Secondly, I feel like once my face experiences the deliciousness that is these Fudgy Peanut Butter Swirl Brownies, my life will be complete.
LOL thanks Taylor!
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