The Best Peanut Butter Brownies that are so easy to make! Chocolate Peanut Butter Brownies are made in no time. Rich, fudgey and delicious!

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If you love peanut butter lover, these peanut butter brownies are for you!
Brownies are the best dessert, but top them with peanut butter and they're out of this world!
Easy to make in less than hour, you'll love these peanut butter brownies!
Why We Love Peanut Butter Brownies
Peanut Butter Brownies are seriously the best dessert! I mean.. peanut butter, chocolate.. what's not to love?
- Made with pantry staples: You probably have everything you need to make these blondies already
- Rich & fudgy: These blondies are gooey in the center and crispy on the top - truly the perfect brownie texture
Ingredients for Peanut Butter Swirl Brownies
To make peanut butter chocolate brownies you'll need:
- salted butter
- semi sweet chocolate
- white sugar
- eggs
- all purpose flour
- cocoa powder
- vanilla extract
- creamy peanut butter
How to Make Chocolate Peanut Butter Brownies
Here's how to make the best peanut butter brownies:
- Preheat the oven to 350 degrees. Line a 8x8 inch baking pan with parchment paper and set aside.
- In a bowl mix the melted chocolate with the melted butter until incorporated. Add the sugar and mix until fully incorporated and shiny.
- Add the egg, egg yolk, milk, and vanilla extract and whisk until you have a thick batter.
- Add the cocoa powder and flour and stir to incorporate.
- Transfer the batter to the prepared pan and swirl the peanut butter on top.
- Take to the oven and bake for 25 to 30 minutes or until done.
How do you add peanut butter swirl to brownies? The best way to swirl peanut butter on brownies is to add it to a ziploc bag and place it in the microwave for 5-10 seconds until it's slightly warmed.
Cut a hole in the corner of the ziploc bag and drizzle the peanut butter on top of the brownies in one direction. Take a butter knife and gently swirl the peanut butter back and forth in the opposite directions.
Tips for this Peanut Butter Brownie Recipe
- Don’t overmix: Whatever you do, don’t overmix the ingredients at the last step. If you over mix, this can make the blondies too sticky or add too many air bubbles.
- Tap the pan on the counter: Just in case, after you’ve leveled out the batter in the pan, give it a few taps on the counter in order to settle the batter and remove any air bubbles.
- Take the brownies out on time: Don’t overcook the brownies. As soon as a toothpick comes out clean after being stuck in the middle, remove them from the oven. Food continues to cook once removed from the oven so, don’t wait too long or your blondies will end up rock hard or burnt.
- Make them with dark chocolate- This Dark Chocolate Brownies Recipe is perfect for swirling with PB!
Peanut Butter Brownie Variations:
White Sugar: We don't recommend substituting the white sure with brown sugar in this recipe. They have different textures.
Butter: Butter is essential to this recipe. We haven't tried it with dairy free butter.
Eggs: We don't recommend substituting eggs, but you can read this article on Egg Substitutions for Baking if you need to substitute. The egg yolk adds a rich texture!
Vanilla Extract: Helps to add flavor, we don't recommend substituting.
Peanut Butter: Make sure to use creamy peanut butter. Do not use chunky peanut butter. It's best to not use all natural peanut butter. Skippy peanut butter works best in this recipe.
All Purpose Flour: We don't recommend substituting the flour, but you can check out this article on Cake Flour vs. All-Purpose Flour or Substitutions for All-Purpose Flour
Add ins: You can add in ½ cup of chocolate chips or peanut butter chips. Chopped peanuts would also be delicious!
Peanut Butter Brownie Storage
Storing: You can store this peanut butter brownie recipe for up to 4 days in an airtight container at room temperature. They'll last for up to a week in the refrigerator.
Freezing: You can freeze peanut butter brownies for up to 3 months. Wrap the brownies individually in plastic wrap and store in an airtight container. Thaw completely before enjoying.
Peanut Butter Brownies Recipe FAQ
Brownies are delicious with oil or butter. Both oil and butter add fat, which helps the brownies have a rich texture. Butter does usually have salt added which helps add flavor to the brownies.
Fat makes brownies chewy. Whether it's oil, butter or egg yolks, fat adds a rich, chewy texture to brownies.
More Peanut Butter Dessert Recipes:
Other delicious peanut butter dessert recipes:
- Reese's Peanut Butter Cup Cookies
- Easy No Bake Peanut Butter Pie
- Easy Peanut Brittle Recipe
- Reese's Peanut Butter Cup Brownies
- Peanut Butter Chocolate Chip Cookies
Chocolate Peanut Butter Brownies
Ingredients
- ½ cup salted butter melted (1 stick)
- ½ cup chopped dark chocolate melted
- 1 cup white sugar
- 1 egg
- 1 egg yolks
- 1 teaspoon vanilla extract
- ¾ cup all purpose flour
- ¼ cup cocoa powder
- ½ cup creamy peanut butter
Instructions
- Preheat the oven to 350 degrees. Line a 8x8 inch baking pan with parchment paper and set aside.
- In a bowl mix the melted chocolate with the melted butter until incorporated. Add the sugar and mix until fully incorporated and shiny.
- Add the egg, egg yolk, and vanilla extract. Whisk until you have a thick batter.
- Add the cocoa powder and flour and stir to incorporate.
- Transfer the batter to the prepared pan and swirl the peanut butter on top using a butter knife.
- Take to the oven and bake for 25 to 30 minutes or until done.
Rene Kingfisher
Can I substitute iodized salt for the sea salt?
Liz @ Tasty Treats & Eats
I haven't tried that but I'm sure it would work.