Chocolate And Peanut Butter Swirl Brownies
Chocolate and peanut butter swirl brownies are decadent, moist, chewy, and filled with rich chocolate chunks. The recipe is super simple to make and is very versatile.
The fudgy brownie features real creamy peanut butter, chocolate chips, and tons of chocolate flavor for one of the best brownie mixes.
An Easy Brownie Recipe For Peanut Butter Lovers

The dessert brownies are a combination of a fudgy, chocolatey center and a crunchy flaky top, with a streak of flavorful peanut butter throughout. And the best part is that it isn’t hard to make, everyone will be wanting some–and there’s plenty to go around.
Brownies are always a safe bet when making desserts because almost everyone loves them. They are easy to make and turn out so sinfully delicious.
And if you’re a chocolate and peanut butter fan, and clearly you are, you have to try my classic Rice Krispie treats with chocolate and peanut butter, too.
The hardest part of this recipe is waiting for them to cool and slice.
And, I have to admit that we take some of the brownies out before they cool off because there’s nothing better than a warm chocolate peanut butter brownie.

What Ingredients Do I Need For the Peanut Butter Brownie Recipe?
The recipe is such an easy one with basic ingredients that most of us already have in the house, so you might not even have to take a trip to the grocery store.
Dry Ingredients
- Granulated sugar
- All-purpose flour
- Unsweetened cocoa powder
- Salt
Wet Ingredients
- Butter, melted
- Eggs
- Vanilla extract
- Semisweet chocolate chips
- Peanut Butter
Full printable recipe with measurements and instructions listed in the recipe card at the bottom of the post.

Step-By-Step Instructions

Start by adding the flour, unsweetened cocoa, and salt to a sifter.

Sift the ingredients into a medium bowl and set it to the side.
You’ll be using this in a few steps.

In a large bowl, add the sugar.

Next, add the melted butter and mix the two ingredients.
Part of the reason you’re mixing the two ingredients together is that you’ll be adding eggs.
If you add eggs to the melted butter, you’ll cook them, so mixing the sugar first will help avoid that. (Speaking from experience-oops).

Vanilla extract is the next ingredient.

Add the eggs to the bowl, one at a time, and mix well.

Pour the flour and cocoa mixture into the bowl and mix well.

In a small bowl, add the chocolate chips and a tablespoon of flour. Toss the chocolate chips and then mix them into the batter.
OPTIONAL: You can use either chocolate chips or peanut butter chips for the step.
TIP: The flour will help keep the chocolate chips from sinking in the brownie batter.

Spoon chocolate batter into a 13″ x 9″ prepared pan and spread to the edges.
TIP: You can either grease the pan with non stick cooking spray or line the pan with parchment paper and when the brownies cool to room temperature after baking you can lift them right out. It’s the easiest way to get them out of the pan.

In a medium microwave-safe bowl, melt the peanut butter in the microwave, for about 30-seconds, and pour over the top of the brownie batter.

Take a butter knife and run it through the brownie batter to give them a swirl effect.
OPTIONAL: If you are a chocoholic like me, you can take a small handful of chocolate chips and sprinkle them on the top of the brownies before baking.
OPTIONAL: Another option is to add some peanut butter cups, cut into pieces, right on top before baking.
Bake the brownies for 35 minutes or until a cake tester comes out clean.

The gooey brownie and peanut butter flavor is out-of-this-world.
And, they taste great with a scoop of vanilla ice cream right on top.

More Delicious Brownie Recipes
- Make things simple with these brownie mix cookies made from a boxed brownie mix.
- If you loved lunchtime desserts in school, you will love these lunch lady brownies.
- Snickers Brownies are a delicious treat from Baked By An Introvert.
- Add some flavor to your holiday brownies with these fudgy peppermint brownies.
- If you love caramel, you will devour these chocolate caramel brownies. They are decadent and amazingly delicious.


Oh my! These look so decadent and delicious!
Thank you, Carlee!
I am definitely making the snickerdoodle cookie bars, probably tonight. Gonna make the peanut butter brownie tomorrow. They both look so good. Thanks for the easy to follow recipes.
Hi Stephanie,
I hope you love them both. We love them around here!
Can you cut this recipe in half. I would love to make these brownies but I live alone. Thanks for your help.
Hi Mary,
You can cut it in half. Hope you love them!