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Easy Fudgy Chocolate Peanut Butter Brownie Recipe

Peanut butter cup lovers rejoice! Our Easy Chocolate Peanut Butter Brownie recipe combines a rich chocolate fudgy brownie with a swirl of creamy peanut butter topping.

The pieces of peanut butter brownies stacked on each other - Hostess At Heart
Let’s make the Best Peanut Butter Brownies!

Indulge in the rich, chocolatey goodness of our peanut butter brownies recipe. This easy-to-follow recipe for peanut butter brownies is sure to satisfy any sweet tooth.

Why You’ll Love Chocolate Peanut Butter Brownies

  • Unique Variation on a Classic. Everyone brings brownies to the campfire or pool party, but very few will bring something as extravagant and luscious as peanut butter brownies.
  • That Iconic flavor combination. If you love the combination of peanut butter and chocolate, you’ll love this easy brownie recipe. Instead of making a peanut butter filling, we swirled a peanut butter topping into the brownie batter, assuring every bite is full of chocolate peanut butter flavor.
  • Simple Recipe. It’s so much easier to make homemade brownies from scratch than you think, and once you’ve tried our chocolate peanut butter brownie recipe, you’ll never look back.

Peanut Butter Brownies Recipe Ingredients

Ingredients used to make peanut butter swirl brownies including sugar, brown sugar, eggs, cocoa, flour, vanilla extract, butter, salt, chocolate chips, and peanut butter.
Peanut Butter Brownie Ingredients
  • Salted Butter.
  • Granulated Sugar. White sugar
  • Light Brown Sugar. Dark brown sugar can be used as well.
  • Vanilla Extract.
  • Eggs. Grade A large
  • Unbleached All-Purpose Flour.
  • Cacao Powder. Use a good quality chocolate cocoa powder.
  • Salt.
  • Chocolate Chips. Semi-sweet or dark chocolate is what we prefer.

Topping Ingredients

A bowl filled with melted butter and powdered sugar next to a bottle of vanilla extract and a measuring cup filled with chunky peanut butter - Hostess At Heart
  • Peanut Butter. I used crunchy peanut butter, but you can use smooth peanut butter as well.
  • Melted Butter. I used salted, but you can use unsalted if that is what you have.
  • Powdered Sugar. Also called confectioners sugar.
  • Vanilla Extract.

Please note, that the printable recipe card has ingredient quantities, complete instructions, and nutritional information. The following is a quick overview of the recipe.

How To Make Peanut Butter Brownies

Step One. Get everything ready to make the ultimate chocolate peanut butter brownies recipe!

Preheat the oven. Make sure you have all of the ingredients and set your butter out to come to room temperature. Butter your pan. Line the pan with parchment paper and butter the parchment paper.

Step Two. Cook the butter and sugar to combine.

A mixing bowl containing butter, white sugar, and brown sugar - Hostess At Heart

In a saucepan, over medium heat, add the butter, granulated sugar, and light brown sugar. Stir until the butter is all melted and combined with the sugars. Cool.

Step Three. Mix dry ingredients.

In a large bowl, sift the flour and cocoa powder together. Add the salt and chocolate chips. Mix until all ingredients are combined and the chocolate chips are coated with the flour mixture. Set aside.

Step Four. Finish mixing the peanut butter brownies.

Add the vanilla extract and the eggs one at a time to the butter-sugar mixture once it has cooled. Mix well in between each. Pour the brownie base mixture into the prepared 9×9 cake pan and smooth it out into an even layer.

Step Five. Make the topping.

In a separate bowl, mix the peanut butter, melted butter, powdered sugar, and vanilla extract. Scoop the peanut butter mixture on top of the brownie batter. Spread gently. Using an offset spatula or butter knife, swirl the peanut butter layer on top of the brownies.

Step Six. Bake the peanut butter swirl brownies.

Bake for 30 to 35 minutes. Let the brownies cool in the pan. Gently release the sides of the brownies and pull on the parchment paper. Place on a cooling wire rack and let it cool for at least 1 to 2 hours.

Cutting board topped Peanut Butter Brownies - Hostess At Heart

How to Serve Our Chocolate Peanut Butter Brownies

Serve the brownies with ice cream, hot fudge, caramel, and your favorite sprinkles or chocolate chips to top it all off.

Substitutions – Additions – Variations

Use 100% cocoa powder versus Dutch-process cocoa powder. I tend to like dark chocolate but it will not affect the outcome if you use the lighter chocolate and cocoa powder of your choice. I recommend using a good quality product since it’s the star.

Peanut Butter – I don’t recommend natural peanut butter because the oil tends to separate. You can use the kind of peanut butter you like; creamy or crunchy varieties are fine.

Have fun with the recipe. Take a piece of the brownies, crumble it, and use it as a topping for a Sundae.

Make it kid-friendly. Substitute the chocolate chips with peanut butter chips or Reese’s pieces.

Make it Deluxe. Use chopped Toblerone or candy bars instead of chocolate chip, or add peanuts or
crushed peanut butter cups on top.

Top down view of pieces of peanut butter topped chocolate brownies - Hostess At Heart

Frequently Asked Questions

What pan is best for baking brownies?

It depends on how thick you want your brownies. I find a 9×9 or 7×11 my favorite. You can check out my free pan conversion chart for more information.

How long to bake brownies?

To properly bake brownies, don’t use a toothpick to test them for doneness like a cake. Instead, as soon as they have barely started to pull away from the sides, take them out or take them out at the minimum baking time, let them cool in the pan, and make a note on your recipe as to how long they took to bake. That’s what I do. All ovens are different.

What does butter do in brownies?

It makes brownies chewy with a fudgy texture. It also tastes more decadent and rich. You can swap it for oil. However, it will not have the same flavor or texture.

Do I have to sift the flour and cocoa powder together?

No, you do not have to sift the flour and cocoa powder together. I always sift cocoa powder because it has fats that clump. By sifting the two together, you’re less likely to overmix trying to get rid of clumps or end up with baked brownies with pockets of cocoa powder or flour.

Side view of a chocolate brownie topped and swirled with a peanut butter topping sitting on a spatula

How To Reheat & Store Peanut Butter Brownies

Best way to store Brownies with Peanut Butter?

Keep the brownies in an airtight container on the counter for 3-4 days or in the fridge for up to 1 week.

Can I freeze Brownies with Peanut Butter?

Yes, you can freeze the pan or individual pieces. Wrap the brownies in plastic wrap and then in foil or an airtight container for up to three months. Freeze in an airtight container for up to three months. Thaw at room temperature to serve or microwave a single brownie for about thirty seconds for faster thawing.

How to reheat Chocolate Peanut Butter Brownies?

You can rewarm a brownie in the air fryer at 330º F for 2 to 3 minutes or briefly in the microwave.

Tips for this Perfect Chewy Peanut Butter Brownies Recipe

  • When you melt the butter and sugars, whisk them together until they are combined. Allow the mixture to cool for about 5 minutes, so whisking the egg into it is easier, and you’re less likely to get scrambled eggs.
  • Melting the butter also helps diffuse it into the other ingredients. Unlike these homemade fudgy brownies, you’ll get a cakey brownie using softened butter because you stir more air into the batter.
  • Don’t over-mix. I use a spatula or Danish dough hook and mix only until combined instead of using an electric mixer.
  • Preparing the pan with parchment paper helps to remove the brownies from the pan for easy slicing. It also eliminates any effect of the pan you use on the brownies.
Close-up sideview of three chocolate brownies topped with a crunchy peanut butter layer stacked on each other - Hostess At Heart

More Brownies Please!

Fudgy Brownies from Scratch is what started our quest to make the BEST brownie recipe. After so many attempts, we finally got the perfect chocolate fudgy brownie that sticks to the roof of your mouth and makes your eyes roll to the back of your head.

We still make that brownie recipe the most but it’s morphed into Cream Cheese BrowniesOreo Brownies, and now a Peanut Butter Brownie with more on their way!

For a cakey brownie, this Chocolate Buttermilk Brownie is an old-fashioned favorite and yep we even have Brownie Cookies. Who knew?

I hope you enjoyed this delicious recipe as much as we do. Drop me a comment below, and don’t forget to give it a star rating. ⭐⭐⭐⭐⭐. Your comments and ratings help others decide if this recipe is for them too.

Side view of 3 moist fudgy chocolate brownies topped with a creamy peanut butter topping stacked on each other.

Peanut Butter Brownie Recipe

Author: Julie Menghini
Peanut butter cup fans rejoice! Our Easy Peanut Butter Brownie recipe combines a rich fudgy brownie with a swirl of peanut butter topping.
5 from 2 votes
Prep Time 20 minutes
Cook Time 35 minutes
Total Time 55 minutes
Course Dessert
Cuisine American
Keyword: Brownie recipe, Peanut Butter, Peanut Butter Brownies
Servings: 20

Ingredients
 
 

Brownie Ingredients

  • 1 cup 2 sticks salted butter, room temperature
  • ¾ cup granulated sugar
  • ¾ cup packed light brown sugar
  • 1 tsp vanilla extract
  • 3 eggs
  • 1 ¼ cup unbleached all-purpose flour
  • ¾ cup cacao powder
  • ¼ tsp salt
  • 1 cup chocolate chips

Peanut Butter Swirl/Topping

  • ¾ cup peanut butter I used crunchy peanut butter but you can use smooth peanut butter as well
  • 2 tbsp melted butter I used salted but you can use unsalted
  • cup powdered sugar
  • 1 tsp vanilla extract

Instructions
 

  • Preheat the oven to 350 °F.
  • Butter a 9 x 9 baking pan.
  • Line the pan with parchment paper and butter the parchment paper.
  • In a saucepan, over medium heat, add the butter, granulated sugar, and light brown sugar. Stir until the butter is all melted and combined with the sugars.
  • Set aside to cool for 4 to 5 minutes
  • In a large mixing bowl, mix the flour, cacao powder, salt, and chocolate chips. Mix until all ingredients are combined and the chocolate chips are coated with the flour mixture. Set aside.
  • To the butter-sugar mixture, once it has cooled, add the vanilla extract and the eggs one at a time. Mix well in between each.
  • Pour the butter-sugar mixture over the flour mixture. Mix until all ingredients are combined, no more dry flour.
  • Pour the mixture into the prepared 9×9 cake pan. Spread evenly. Set aside.
  • In a medium size bowl, mix the peanut butter, melted butter, powdered sugar, and vanilla extract.
  • Mix until all are combined.
  • Using a spoon, scoop the peanut butter onto the brownies.
  • Gently spread evenly with an offset spatula or butter knife.
  • Use a knife and make a swirl in the mixture.
  • Bake in the preheated oven for 30 to 35 minutes or until the edges are set.
  • Let the brownies cool off in the pan for 5 minutes.
  • Gently release the sides of the brownies and pull on the parchment paper.
  • Place on a cooling rack and let it cool for at least 1 to 2 hours.

Notes

Storage: Keep the brownies in an airtight container on the counter for 3-4 days and in the fridge for up to 1 week. Peanut Butter Brownies can be frozen for up to 3 months.

Nutrition

Calories: 227kcalCarbohydrates: 34gProtein: 5gFat: 9gSaturated Fat: 3gPolyunsaturated Fat: 1gMonounsaturated Fat: 3gTrans Fat: 0.1gCholesterol: 29mgSodium: 98mgPotassium: 133mgFiber: 2gSugar: 24gVitamin A: 91IUVitamin C: 0.1mgCalcium: 32mgIron: 1mg

Nutritional Disclaimer

This recipe was calculated using the exact brands and measurements I used to make this recipe. If you are following a strict diet please note changing anything will cause the nutritional info to change. My calculations are intended as a guide only.

Tried this recipe?Let me know how it was!

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Recipe Rating




Janelle

Wednesday 27th of September 2023

Anything peanut butter and chocolate is a win in our house. These brownies were tasty!

Julie Menghini

Wednesday 4th of October 2023

I'm with you! Thank you!

Lynn

Tuesday 26th of September 2023

SO GOOD! I love how the peanut butter is baked into the batter. It makes such a delicious and fun texture.

Julie Menghini

Wednesday 4th of October 2023

Thank you, Lynn! Chocolate and peanut butter is so good together!

Kathi

Tuesday 26th of September 2023

I loved this recipe! And the crunchy peanut butter, loved it! Perfect addition!

Julie Menghini

Wednesday 4th of October 2023

I love the crunchy peanut butter too! Thank you.

lisa

Monday 25th of September 2023

I can't wait to try these brownies! They look so chocolaty and good and I love the peanut butter chocolate combo!

Julie Menghini

Monday 25th of September 2023

Thank you, Lisa!

Debi

Sunday 24th of September 2023

Two of my favorite flavors - chocolate and peanut butter in a crave-able brownie. These are delicious.

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