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Reese’s brownies have a fudgy brownie base topped with creamy peanut butter buttercream. You can’t go wrong with this decadent dessert!!

Reese’s brownies are the ultimate treat for all lovers of peanut butter and chocolate! They are the epitome of the chocolate and peanut butter heaven!! For more Reeses goodness, check out our: Candy Bar Brownies and Reeses Fudge.

Reese's Brownies on a white cake stand

Reese’s Peanut Butter Cup Brownies

Today’s Reese’s brownies have a rich and luscious chocolate brownie layer, topped with a delicious peanut butter buttercream, then they are drizzled with even more chocolate and sprinkled with chopped Reese’s candies.

Desserts just don’t get better than that!

To mix things up we may even try a blondie base next time and top it with white chocolate Reese’s and a white chocolate drizzle. We are thinking that would be an amazing version as well. 😉

It’s hard for us NOT to love the chocolate and peanut butter combo and these brownies are the epitome of Reese’s heaven. They remind us of our famous Buckeye Brownies, but I’m pretty much thinking these treats are tied. They both are heavenly!

brownie base in a metal pan

How to Make Reeses Brownies

PREP. Preheat oven to 350. Line a 13 x 9 inch pan with foil or parchment and set aside.

BROWNIES. In a medium saucepan, melt butter over low heat. Stir in chocolate chips, and melt, stirring frequently. When there are no more lumps, remove from heat and stir in sugar and vanilla. Add the eggs one at a time, and mix until the mixture is smooth and glossy. Fold in the cocoa powder, salt, and flour, and mix until barely combined.

BAKE. Pour the mixture into the prepared pan and bake 30-35 minutes, or until a toothpick inserted one inch from the side of the pan comes out clean. Remove from oven and allow to cool completely.

FROSTING. When the brownies are cool, beat together the softened butter, peanut butter, powdered sugar, and vanilla. Add milk until the frosting reaches a smooth consistency. Spread the frosting over the cooled brownies.

TOPPING. Add the chocolate chips and butter to a small microwave bowl. Microwave at 50% power for 30 second intervals, stirring in between, until melted and smooth. Pour into a piping bag (or Ziploc bag), cut off a small corner of the bag, and drizzle the chocolate over the frosting. Sprinkle with the Reese’s candies. Let cool and set up before serving.

peanut butter buttercream frosting on top of brownies

Variations + REcipe Tips

I LOVE LOVE LOVE Chocolate desserts. Add some peanut butter and you’ve got a slice of heaven. This dessert is so delicious as it is however, the great thing about being a baker is being a little creative. You can easily create different candy bar variations such as:

  • Chopped Snickers or Butterfinger
  • Reese’s Pieces or chopped Peanut Butter M&M’s
  • Add a caramel layer between the peanut butter and chocolate layer.

Using room temperature eggs will help them incorporate better.

Use high quality ingredients. It really makes a difference!

Line the pan with parchment paper to aid in easy brownie removal.

If you’re using a glass or ceramic dish, then you’ll want to add a few extra minutes.

Reeses Cup Brownies on a white table

Storing Info

I have to admit these are decadent and I can only eat a small piece which is good since it has a higher calorie count. So the fact that these store well is great because we can have a sweet treat now and then save the rest for later. 

  • For short term storage you can STORE the brownies in an airtight container for 3-4 days before they start drying out. 
  • For longer storage I place each brownie in a fold top sandwich baggie and then place them together in a Freezer Ziploc. FREEZE for up to 3 months.
Reese's Peanut Butter Cup Brownies stacked on a marbled table

For even more peanut butter and chocolate goodness, check out:

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5 from 27 votes

Reese’s Brownie recipe

By: Lil’ Luna
Reese's brownies have a fudgy brownie base topped with creamy peanut butter buttercream. You can't go wrong with this decadent dessert!!
Servings: 15
Prep: 15 minutes
Cook: 30 minutes
Total: 45 minutes

Ingredients 

For the brownies:

For the frosting

For the topping:

  • 1 cup semi-sweet chocolate chips
  • 1 tsp butter
  • 1 1/2 cups chopped Reese’s
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Instructions 

  • Preheat oven to 350. Line a 13 x 9 inch pan with foil or parchment and set aside.
  • In a medium saucepan, melt butter over low heat. Stir in chocolate chips, and melt, stirring frequently. When there are no more lumps, remove from heat and stir in sugar and vanilla. Add the eggs one at a time, and mix until the mixture is smooth and glossy. Fold in the cocoa powder, salt, and flour, and mix until barely combined.
  • Pour the mixture into the prepared pan and bake 30-35 minutes, or until a toothpick inserted one inch from the side of the pan comes out clean. Remove from oven and allow to cool completely.
  • When the brownies are cool, beat together the softened butter, peanut butter, powdered sugar, and vanilla. Add milk until the frosting reaches a smooth consistency. Spread the frosting over the cooled brownies.
  • Add the chocolate chips and butter to a small microwave bowl. Microwave at 50% power for 30 second intervals, stirring in between, until melted and smooth. Pour into a piping bag (or Ziploc bag), cut off a small corner of the bag, and drizzle the chocolate over the frosting. Sprinkle with the Reese's candies. Let cool and set up before serving.

Nutrition

Serving: 15g, Calories: 691kcal, Carbohydrates: 75g, Protein: 11g, Fat: 41g, Saturated Fat: 20g, Trans Fat: 1g, Cholesterol: 99mg, Sodium: 411mg, Potassium: 401mg, Fiber: 5g, Sugar: 59g, Vitamin A: 592IU, Vitamin C: 1mg, Calcium: 62mg, Iron: 3mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Dessert
Cuisine: American
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Thank you Alicia from The Baker Upstairs for sharing this delish recipe!

About Alicia

Hi! I’m Alicia and I blog at The Baker Upstairs. I am in love with all things food! I love to bake bread, cupcakes, cookies… you name it! When I’m not baking, I am running after my two adorable little girls, working as an RN, knitting, reading, and trying to squeeze in time with my husband every day.

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Recipe Rating




18 Comments

  1. Roni A says:

    5 stars
    This is the best brownies I have ever eaten. It is easy to make and people raved about the taste

    1. Lil'Luna Team says:

      Yay! I’m so glad the brownies were a hit!

  2. Sherry says:

    5 stars
    My family is huge on PB and chocolate, so I often make a very fancy peanut butter-brownie cake. When that’s too much work though, I look for a peanut butter brownie recipe. I’ve made several over the years, but we all agreed: this one is the Best. And yes, the brownies are rich, but not as over the top as some. A big keeper!

    1. Lil'Luna Team says:

      I’m so glad you all enjoyed the brownies!! Yay!

  3. Shannon. Tarrant says:

    5 stars
    Awsome

  4. Kristina says:

    5 stars
    Um you had me at “reese’s and brownies” Two of my very favorite desserts and combining them was bliss. They are definitely a sugar overload, but worth it for a special occasion treat.