Are you looking for the ultimate chocolate and peanut butter dessert? These Reese’s peanut butter cup brownies are the answer.
The rich, fudgy brownies are topped with a thick layer of frosting, drizzled with melted chocolate, and decorated with pieces of Reese’s peanut butter cups.
The combination of the chocolate brownie and the peanut butter frosting is truly irresistible. Each bite is a perfect balance of flavors that will have everyone reaching for a second helping.
Keep reading to learn how to make these peanut butter frosted brownies.
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Ingredients for Reese’s peanut butter cup brownies
To make these frosted peanut butter brownies, you’ll need the following ingredients:
For the chocolate brownies recipe
- 1 cup of all-purpose flour
- ¼ teaspoon of baking powder
- ½ teaspoon of sea salt
- ½ cup of unsalted butter (1 stick)
- 1 tablespoon of 2% milk
- ¾ cup of semi-sweet chocolate chips
- ¾ cup of unsweetened cocoa
- 1 cup of granulated sugar
- 2 large eggs
- ¾ teaspoon of pure vanilla extract
- 1 cup of Reese’s peanut butter morsels
To make the peanut butter frosting for brownies
- 3 tablespoons of unsalted butter at room temperature
- 3 tablespoons of creamy peanut butter
- ½ teaspoon of pure vanilla extract
- 1 cup of confectioner’s sugar
- 1 tablespoon of 2% milk
For the chocolate drizzle
- 2 tablespoons of semi-sweet chocolate chips
- ¼ teaspoon of coconut oil
- 6 miniature peanut butter cups, cut into quarters
You’ll also need mixing bowls, a piece of parchment paper, a medium saucepan, a hand mixer, a 9 x 9-inch baking pan, and a piping bag.
Instructions for making the chocolate peanut butter brownies recipe
Start by preheating the oven to 350ºF (180ºC). Line a 9 x 9-inch baking pan with parchment paper and set it aside.
In a medium bowl, whisk together the all-purpose flour, baking powder, and sea salt.
Put a small saucepan over medium-low heat and add ½ cup (1 stick) of butter, ¾ cup of semi-sweet chocolate chips, 1 tablespoon of 2% milk, and the cocoa. Gently cook, stirring the whole time, until the mixture is smooth and thick – about 3 minutes.
Be careful not to let the chocolate mixture burn.
Remove the saucepan from the heat and stir in the granulated sugar. Stir for about 30 seconds. The mixture will look a little grainy at this point.
Add the eggs, 1 at a time, and mix well. Then stir in the pure vanilla extract. The mixture will resemble fudge at this stage.
Gently add the combined flour, salt, and baking powder until it is incorporated.
Fold in the Reese’s peanut butter morsels. Stir until everything is combined and the mixture is thick and fudgy.
Spread the mixture into the prepared baking pan and bake for 20-25 minutes or until a toothpick inserted in the middle of the brownies comes out clean.
Remove the pan of brownies from the oven and let them cool.
How to make frosting for brownies
To make the peanut butter frosting, add 3 tablespoons of butter, the peanut butter, ½ teaspoon of pure vanilla extract, and the confectioner’s sugar to a bowl. Beat with a hand mixer until a thick paste forms – about 2 minutes.
Stir in the milk, and beat until the frosting is very smooth – 1 more minute.
Spread the peanut butter frosting over the cooled brownies.
Making the chocolate drizzle
To make the drizzle, place 2 tablespoons of semi-sweet chocolate chips and ¼ teaspoon of coconut oil in a small microwave-safe bowl.
Heat on 50% power in 20-second increments until the chocolate has melted – about 1 – 2 minutes.
Add the melted chocolate to a piping bag and snip the end of the bag.
Drizzle the chocolate over the top of the peanut butter frosted brownies. This gives the brownies a look that is fancy enough for a special dinner party.
Cut the peanut butter frosted brownies into 12 squares. Then place 2 pieces of the chopped peanut butter cups on top of each brownie.
Store the Reese’s peanut butter cup brownies in an air-tight container for up to a week.
Time to taste the chocolate peanut butter brownies recipe
These rich, fudgy brownies with peanut butter frosting are a decadent treat.
The base of the brownies has a strong chocolate flavor, which is balanced by a light peanut butter frosting.
In addition to adding visual appeal, the chocolate drizzle and Reece’s peanut butter cups add another burst of flavor to every bite.
This dessert recipe is the perfect combination of all of the ingredients that make up a Reese’s peanut butter cup!
More chocolate peanut butter recipes
If you love the flavor of chocolate and peanut butter, try one of these recipes, too.
- Chocolate Peanut Butter Oatmeal Bars – This is an easy, no-bake recipe that is great for the summer when you don’t want to turn on your oven.
- Peanut Butter Swirl Fudge – Looking for more Reese’s flavor? This chocolate peanut butter fudge recipe will do the trick.
- Irresistible Peanut Butter Chocolate Chip Cookies – These cookies have the fabulous taste of peanut butter and chocolate in every bite.
Share this brownies with peanut butter frosting recipe on X
If you enjoyed these Reese’s peanut butter cup brownies, why not share this recipe with a friend? Here is a post to get you started:
Rich, fudgy brownies topped with creamy peanut butter frosting? Yes, please! 🍫🥜 Head to Recipes Just 4U for the peanut butter frosted brownies recipe. #BrownieRecipe #Reeses #ChocolatePeanutButter #Baking #Brownies #PeanutButterLovers Share on XPin this recipe for chocolate brownies with peanut butter frosting
Would you like a reminder of this recipe for Reese’s peanut butter cup brownies? Just pin this image to one of your dessert boards on Pinterest so that you can easily find it later.
You can also watch this YouTube slideshow video about making Reese’s peanut butter cup brownies!
Admin note: This brownies with peanut butter icing recipe first appeared on the blog in July of 2013. This post has been updated to add new photos, a printable recipe card, and a slideshow video.
Reese's Peanut Butter Cup Brownies Recipe - Rich Brownie with Peanut Butter Frosting
These delicious chocolate fudge brownies have a creamy peanut butter frosting that takes the dessert to a whole new level.
If you are craving the ultimate Reese's experience, this recipe will deliver!
Ingredients
For the chocolate brownies
- 1 cup of all-purpose flour
- ¼ teaspoon of baking powder
- ½ teaspoon of sea salt
- ½ cup of unsalted butter (1 stick)
- ¾ cup of semi-sweet chocolate chips
- ¾ cup of unsweetened cocoa
- 1 tablespoon of 2% milk
- 1 cup of granulated sugar
- 2 large eggs
- ¾ teaspoon of pure vanilla extract
- 1 cup of Reese's peanut butter morsels
For the peanut butter frosting
- 3 tablespoons of unsalted butter at room temperature
- 3 tablespoons of creamy peanut butter
- ½ teaspoon of pure vanilla extract
- 1 cup of confectioner's sugar
- 1 tablespoon of 2% milk
For the chocolate drizzle
- 2 tablespoons of semi-sweet chocolate chips
- ¼ teaspoon of coconut oil
- 6 miniature peanut butter cups, cut into quarters
Instructions
- Preheat the oven to 350ºF (180ºC).
- Prepare a 9 x 9-inch square pan by lining it with parchment paper. Set it aside.
- In a medium bowl, whisk together the flour, baking powder, and sea salt.
- In a small saucepan over medium-low heat, add ½ cup (1 stick) of butter, ¾ cup of semi-sweet chocolate chips, 1 tablespoon of 2% milk, and the cocoa. Stir until the mixture is well-combined and thick - about 3 minutes.
- Remove the saucepan from the heat and stir in the granulated sugar. Stir for about 30 seconds.
- Add the eggs, 1 at a time, and then add the pure vanilla extract.
- Gently stir in the combined flour, salt, and baking powder until incorporated.
- Fold in the Reese's peanut butter morsels with a wooden spoon. The mixture will be very thick.
- Spread the mixture into the prepared pan with a spatula, and bake for 20-25 minutes or until a toothpick inserted in the middle of the brownies comes out clean.
- Remove the pan of brownies from the oven and let them cool.
- To make the frosting, put 3 tablespoons of room temperature butter, the peanut butter, ½ teaspoon of pure vanilla extract, and the confectioner's sugar into a bowl. Mix at medium-high speed with a hand mixer until a thick paste forms, about 2 minutes.
- Stir in the milk, and mix until smooth, about 1 minute more.
- Spread the frosting over the cooled brownies.
- To make the chocolate drizzle, place 2 tablespoons of semi-sweet chocolate chips and ¼ teaspoon of coconut oil in a small microwave-safe bowl.
- Heat on 50% power in 20-second increments until the chocolate has melted - about 1-2 minutes.
- Add the melted chocolate to a piping bag and snip the end of the bag.
- Drizzle the chocolate over the top of the peanut butter frosting.
- Cut the brownies into 12 squares.
- Place 2 pieces of the chopped Reese's peanut butter cups on top of each brownie.
- Store the peanut butter frosted brownies in an air-tight container for up to a week.
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Nutrition Information:
Yield:
12Serving Size:
1Amount Per Serving: Calories: 509Total Fat: 28gSaturated Fat: 13gTrans Fat: 0gUnsaturated Fat: 13gCholesterol: 61mgSodium: 244mgCarbohydrates: 62gFiber: 3gSugar: 46gProtein: 8g
Nutritional information is approximate due to natural variation in ingredients and the cook-at-home nature of our meals.