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Peanut Butter Brownies

Fudgy brownies with layers of creamy peanut butter and topped with a rich chocolate ganache. These chocolate peanut butter brownies are dangerously delicious!

One of the best combinations ever is chocolate and peanut butter. The two flavors taste absolutely amazing together. These brownies are a favorite, as well as peanut butter bars, peanut butter stuffed chocolate cookies, Reese’s cheesecake and chocolate peanut butter no-bake cookies.

peanut butter brownies on a white plate

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Okay, these peanut butter brownies that I’m sharing today are the REAL deal friends. Holy cow! They’re gooey, fudgy, full of creamy peanut butter and topped with a rich chocolate ganache. Talk about what dreams are made of!

I love that the brownies are super easy to make, too. They start with a box of brownie mix and then are doctored up with a delicious peanut butter filling and ganache topping. Proof that baking can be super simple and still taste amazing!

drops of peanut butter filling on top of brownie mixture in pan

How to make easy peanut butter brownies

To get started, preheat oven to 350°F and line a 9×9″ pan with parchment paper. Lightly grease with non-stick cooking spray

Step 1: Make brownie mix

Make brownie batter according to directions on package. Then pour about 2/3 mixture into the parchment lined pan.

Step 2: Make peanut butter filling

Mix together butter, peanut butter and powdered sugar until smooth. If the mixture is too thick, add a Tablespoon of milk as needed. Using a spoon, drop spoonful’s of peanut butter filling on top of brownie batter (photo above).

Step 3: Bake brownies

Add remaining 1/3 brownie mixture on top of peanut butter and smooth with spatula. Bake for 30 minutes, or until a toothpick comes out clean. Remove from oven and let cool completely.

Step 4: Make chocolate ganache

Heat the heavy cream in the microwave for about 30 seconds, or until very hot. Then pour on top of the chopped chocolate (photo below) and cover with saran wrap. Let sit for a few minutes in order to melt.

Step 5: Top brownies with ganache and chill

Stir ganache until smooth, then pour over cooled brownies and smooth with a spatula. Refrigerate for 1 hour prior to serving.

making chocolate ganache in white bowl

Baking tips

  • Line your pan with parchment for easy removal.
  • Can add chopped Reese’s to the peanut butter filling before baking or on top of chocolate ganache.
  • Feel free to mix in some chocolate chips to your brownie batter.
  • You could omit the chocolate ganache if preferred.
  • For a thinner brownie, add batter to a 9×13″ baking dish. Baking time will likely be shorter, about 20-25 minutes.
  • Don’t over bake! You want the brownies to be gooey and fudgy. Oven timing can vary, so use a toothpick to determine if brownies are done.

stack of chocolate peanut butter brownies

More brownie recipes:

peanut butter brownies with a bite taken

Peanut Butter Brownies

5 from 7 votes
Fudgy brownies with layers of creamy peanut butter and topped with a rich chocolate ganache. These chocolate peanut butter brownies are dangerously delicious!
Prep Time: 20 mins
Cook Time: 30 mins
Refrigerate: 1 hr
Total Time: 1 hr 50 mins
Servings: 24

Ingredients 

Brownies:

  • 1 box brownie mix , plus ingredients on box

Peanut Butter Filling:

Chocolate Ganache:

  • 4 ounces chocolate (bittersweet or semi-sweet) , chopped
  • 3 Tablespoons  heavy cream

Instructions

  • Preheat oven to 350°F and line a 9x9" pan with parchment paper. Lightly grease with non-stick cooking spray.
  • Mix brownie mix with ingredients listed on package. Then pour about 2/3 brownie mixture into pan.
  • Mix butter, peanut butter and powdered sugar together until smooth. If it gets too thick, add a Tablespoon of milk as needed. Using a spoon, drop spoonfuls of peanut butter filling on top of brownie mixture.
  • Then add remaining 1/3 brownie mixture on top of peanut butter and smooth out with spatula if needed.
  • Bake for 30 minutes, or until a toothpick comes out clean. Remove from oven and allow brownies to cool completely.
  • Heat the heavy cream in the microwave for about 30 seconds, or until very hot. Then pour cream over the chopped chocolate and cover with saran wrap. Allow to sit for a few minutes to melt.
  • Stir ganache until smooth, then pour over cooled brownies. Use a spatula if needed to smooth out the ganache. Refrigerate for 1 hour before serving.

Video


Notes

  • Line your pan with parchment for easy removal.
  • Can add chopped Reese's to the peanut butter filling before baking or on top of chocolate ganache.
  • Feel free to mix in some chocolate chips to your brownie batter.
  • You could omit the chocolate ganache if preferred.
  • For a thinner brownie, add batter to a 9x13" baking dish. Baking time will likely be shorter, about 20-25 minutes.

Serving: 1square | Calories: 197kcal | Carbohydrates: 23g | Protein: 3g | Fat: 11g | Saturated Fat: 4g | Cholesterol: 7mg | Sodium: 113mg | Potassium: 79mg | Fiber: 1g | Sugar: 15g | Vitamin A: 75IU | Calcium: 8mg | Iron: 1mg
Course: Dessert
Cuisine: American
Author: Jamielyn Nye

Enjoy!

peanut butter brownies with a bite taken out

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