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Buckeye Brownies

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If chocolate and peanut butter are your thing, this buckeye brownies recipe is for you! The rich fudgy brownies and thick peanut butter layer are just meant to go together. They may just become your new favorite dessert.

Two pieces of brownies topped with peanut butter layer and chocolate next to a cake stand with more pieces of buckeye brownies.

This recipe combines two of our favorite treats, chocolaty brownies and peanut butter buckeyes. Let me tell you, this is definitely an instance where two good things are even better together!

As happens with a lot of these recipes, it started with a request from my brother. When I asked him what he wanted for his birthday dessert, he requested some sort of brownies with peanut butter frosting.

While that would have been delicious, the idea evolved inside my head. And that is how these beauties were born.

Ingredients including butter, peanut butter, eggs, cocoa powder, chocolate chips, sugar, flour, powdered sugar, vanilla and more ready to be made into buckeye brownies.

Some peanut butter buttercream or even peanut butter cream cheese frosting would have been good, but I am quite comfortable telling you that these were even better.

But, don’t take my word for it. Make some to see for yourself!

The Brownies

Of course you need some tasty brownies to build on. Ever since we started making homemade brownie mix, that is our go to.

You can make up several batches and keep it in your pantry. And make a few to gift while you are at it.

Or do what we do, and just use that as the base recipe without making the mix separately. They are so easy to put together and they taste great.

However, you can certainly pick up a box mix from the store or use your favorite recipe. Just make sure it is sized appropriately to make in a 9×13-inch pan.

Or you can halve the toppings and make a recipe that works for an 8×8-inch pan. You can do that easily by pushing the button in the recipe card.

Just take a couple of minutes off the bake time if you are reducing the size of the recipe. Or just go for it and make the whole thing, you won’t regret it!

The Peanut Butter Layer

I am a sucker for good peanut butter recipes, so of course this layer is the star of the show for me. It is based on our favorite buckeyes.

In order to make it spreadable, I went ahead and melted the butter. That helps to make it a little easier to work with, but it also sets up nicely.

I find it easiest to spread over the brownies if you drop it by the small spoonful over the brownies. Then all you have to do is smooth it together.

Chocolate on Top

To really bring the buckeye theme home, we put a little bit of extra chocolate on top.

Is it gilding the lily a bit? Probably.

Am I ashamed? Not one little bit.

We have come this far, we might as well make them as good as possible.

I wanted them to have the feeling of biting through the chocolate shell of buckeyes, but also wanted it to be soft enough to cut through.

Melting a little bit of butter into chocolate chips helped to find that balance. It is more solid than a frosting, but cuts instead of shatters.

Dessert plate with a couple of buckeye brownies next to a glass of milk and a cake plate with more pieces of brownie.

My family prefers milk chocolate, especially Little Dude. But you can use whatever you like best.

They are going to be good no matter what!

Well, that’s it! I hope you enjoy these buckeye brownies as much as we have. For more tasty brownie inspiration, check out my collection of brownie and blondie recipes.

Small plate with two squares of buckeye brownies with chocolate brownie layer, smooth peanut butter layer, and chocolate on top.

Buckeye Brownies

Servings: 16 Servings
Author: Carlee
If chocolate and peanut butter are your thing, this buckeye brownies recipe is for you! The rich fudgy brownies and thick peanut butter layer are just meant to go together. They may just become your new favorite dessert.
5 from 10 ratings
Prep Time 15 minutes
Cook Time 30 minutes
Resting time 1 hour
Total Time 1 hour 45 minutes


Brownie layer:

  • 1 cup all purpose flour
  • 1 teaspoon baking powder
  • cups granulated sugar
  • 1 teaspoon salt
  • 1 cup cocoa powder
  • 1 cup melted butter or vegetable oil
  • 3 large eggs
  • 1 teaspoon vanilla extract
  • ½ cup chocolate chips

Peanut Butter Layer:

  • 16 ounces creamy peanut butter
  • ½ cup unsalted butter melted
  • 3 cups powdered sugar
  • 1 teaspoon vanilla extract
  • 1 pinch salt
  • 1 Tablespoon milk

Chocolate Topping:

  • cups chocolate chips
  • 6 Tablespoons butter
Makes: 9 x 13inch rectangle2inch height



  • Preheat oven to 350F and grease a 9×13-inch pan
  • In a large mixing bowl, stir together flour, baking powder, sugar, salt, and cocoa powder.
    1 cup all purpose flour, 1 teaspoon baking powder, 1½ cups granulated sugar, 1 teaspoon salt, 1 cup cocoa powder
  • Stir in melted butter or oil, eggs, and vanilla.
    1 cup melted butter, 3 large eggs, 1 teaspoon vanilla extract
  • Add chocolate chips and mix until evenly distributed.
    ½ cup chocolate chips
  • Spread in the prepared pan and bake for 25-30 minutes. Allow to cool before proceeding.

Peanut Butter Filling

  • In a large bowl, stir together peanut butter and melted butter.
    16 ounces creamy peanut butter, ½ cup unsalted butter
  • Stir in powdered sugar, vanilla, salt and milk. It should be a really thick frosting consistency, soft enough to spread but stiff enough to easily hold its shape. If needed, add a few more drops of milk so that it comes together.
    3 cups powdered sugar, 1 teaspoon vanilla extract, 1 pinch salt, 1 Tablespoon milk
  • Drop the peanut butter mixture by the spoonful over the cooled brownies. Spread until it forms a smooth layer.

Chocolate Topping

  • In a medium glass bowl, melt together the chocolate chips and butter. Microwave in short 20-30 second bursts until you can stir it smooth.
    1½ cups chocolate chips, 6 Tablespoons butter
  • Spread over the peanut butter layer.
  • Allow to set for at least 30 minutes before cutting into squares and serving.


Serving: 1BrownieCalories: 686kcalCarbohydrates: 71gProtein: 10gFat: 44gSaturated Fat: 21gPolyunsaturated Fat: 5gMonounsaturated Fat: 13gTrans Fat: 1gCholesterol: 88mgSodium: 436mgPotassium: 335mgFiber: 4gSugar: 57gVitamin A: 709IUCalcium: 65mgIron: 2mg

Nutritional Disclaimer

“Cooking With Carlee” is not a dietitian or nutritionist, and any nutritional information shared is an estimate. If calorie count and other nutritional values are important to you, we recommend running the ingredients through whichever online nutritional calculator you prefer. Calories and other nutritional values can vary quite a bit depending on which brands were used.

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5 from 10 votes (9 ratings without comment)
Recipe Rating

Andrea Nine

Friday 1st of March 2024

This is brilliant! I never thought to make the buckeyes in brownie form! They look so good!


Friday 1st of March 2024

It's the combination of two of our favorite desserts, and they are even better together!