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

Peanut butter swirl brownies on a blue cake stand.

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.

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.

Peanut butter brownies stacked on top of each other.

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.

Brownies sliced in a baking dish.

How Do I Make Peanut Butter Brownies?

  1. Start by sifting the all-purpose flour, unsweetened cocoa, and salt together. Set the bowl aside.
  2. Next, add the sugar and melted butter to a large bowl and mix well.
  3. Add the vanilla extract and eggs, one at a time, and mix well.
  4. Pour in the flour mixture and mix.
  5. In a small bowl, add the chocolate chips and one teaspoon of flour, and toss to coat the chips.
  6. Add the chocolate chips to the brownie batter and mix.
  7. Pour the batter into the baking dish.
  8. In another bowl melt the peanut butter in the microwave and pour over the brownie batter.
  9. Take a knife and run it through the batter.
  10. Bake for approximately 35-minutes or until a cake tester comes out clean.

Step-By-Step Instructions For Peanut Butter Swirl Brownies

Cocoa, sugar, and salt in a glass bowl.

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

Cocoa, sugar, and flour in a glass bowl.

Sift the ingredients into a medium bowl and set it to the side.

You’ll be using this in a few steps.

Sugar in a glass bowl.

In a large bowl, add the sugar.

Pouring melted butter into a glass bowl with 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).

Butter, sugar, and vanilla extract mixed together in a glass bowl.

Vanilla extract is the next ingredient.

Mixing eggs, butter, flour, and sugar with a hand mixer.

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

Cocoa, sugar, and flour in a glass bowl

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

Chocolate chips in a small bowl with flour

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.

Brownie batter in a casserole dish

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.

Pouring melted peanut butter over brownies

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.

Peanut butter swirled over brownies

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.

Brownies sitting on a blue cake stand.

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.

Peanut butter swirl brownies sitting on a blue cake stand.

If you love these peanut butter swirl brownies, try these desserts:

More peanut butter desserts

Peanut Butter Swirl Brownie Recipe Card

Check out the peanut butter swirl brownie recipe below, grab those ingredients, and start baking! This is a delicious treat that everyone will love.

Then, share your comments below and share a picture of your brownies on the Pinterest Pin!  If you made any changes or added something different, be sure to share it with us so we can try it, too!

Peanut butter brownies stacked on top of each other.

Peanut Butter Swirl Brownies

4.41 from 5 votes
Julie Pollitt
Peanut butter swirl brownies are absolutely divine, moist, chewy, and decadent. The recipe is super simple to make and is very versatile.
Prep Time 15 minutes
Cook Time 35 minutes
Additional Time 30 minutes
Total Time 1 hour 20 minutes
Course Desserts
Cuisine American
Servings 36
Calories 260 kcal

Ingredients
  

  • 2 sticks butter melted
  • 3 cups sugar
  • 1 Tablespoon vanilla extract
  • 4 eggs
  • 1-1/2 cups all-purpose flour
  • 1 cup unsweetened cocoa
  • 1-1/4 teaspoon salt
  • 1 cup chocolate chips
  • 1-1/2 cups of creamy peanut butter melted

Instructions
 

  • Preheat oven to 350-degrees and grease a 9" x 13" baking dish.
  • Sift the flour, cocoa, and salt, and set aside.
  • In a large bowl, add the sugar and melted butter and mix.
  • Next, add the vanilla extract, and eggs, one at a time, and mix.
  • Add the flour mixture and mix well.
  • In a small bowl, add the chocolate chips and teaspoon of flour and toss. Add the chocolate chips to the batter and mix well.
  • Pour the batter into the baking dish.
  • In another bowl, add the peanut butter and melt in the microwave for about 30 seconds. Add more time, in increments of 10 seconds, if needed.
  • Pour the peanut butter over the brownie batter and run a knife through to create the swirls.
  • Bake for 35 minutes or until the cake tester comes out clean.
  • Cool for about 30 minutes before slicing.

Video

Nutrition

Serving: 1Calories: 260kcalCarbohydrates: 30gProtein: 5gFat: 14gSaturated Fat: 6gPolyunsaturated Fat: 7gCholesterol: 34mgSodium: 376mgFiber: 2gSugar: 20g
Tried this recipe?Let us know how it was!

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4.41 from 5 votes (5 ratings without comment)

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6 Comments

  1. Oh my! These look so decadent and delicious!

    1. Julie Pollitt says:

      Thank you, Carlee!

  2. Stephanie Hinman says:

    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.

    1. Julie Pollitt says:

      Hi Stephanie,

      I hope you love them both. We love them around here!

  3. Mary Siira says:

    Can you cut this recipe in half. I would love to make these brownies but I live alone. Thanks for your help.

    1. Julie Pollitt says:

      Hi Mary,

      You can cut it in half. Hope you love them!