Buckeye Brownies are rich, fudgy chocolate brownies topped with a sweet and creamy peanut butter center, and a silky chocolate topping that brings it all together!

If you’re a buckeye fan, my Buckeye Dip, Buckeye Rice Krispie Treats, Buckeye Graham Crackers, Peanut Butter Buckeye Pretzels, and Nilla Wafer Buckeyes deliver fun twists of the classic you already crave!

Why you’ll love this recipe:

If you’ve been looking for Buckeye Brownies that are rich, fudgy, and ridiculously easy to make, this is exactly what you need. These brownies take everything people love about classic chocolate brownies and turn it into something even better with a thick peanut butter layer and a smooth chocolate ganache on top!

Regular brownies are great, but they’re also predictable. Buckeye Brownies are inspired by those classic peanut butter Buckeye candies, and the flavor combination is just as addictive. You get that deep chocolate base, then a creamy, slightly sweet peanut butter layer, and finally a silky chocolate topping that ties it all together.

Every bite hits a little differently. First the rich brownie, then the soft peanut butter, then that melt-in-your-mouth chocolate finish. It’s the kind of dessert that doesn’t last long once people try it!

They look impressive when sliced, with those clean layers, but there’s nothing complicated going on behind the scenes. That’s part of the appeal—they feel fancy, but they’re actually one of the simplest desserts you can make—especially if you start with a store-bought brownie mix!

Ingredients you’ll need:

Store-bought brownie mix- prepared according to box instructions
Creamy peanut butter
butter- softened
Powdered sugar
Heavy whipping cream- divided
Vanilla extract
Semi-sweet chocolate chips

If you’re after an easy Buckeye Brownie recipe that delivers big flavor with minimal work, this one checks all the boxes. You get the richness of fudgy brownies, the creaminess of peanut butter, and the smooth finish of chocolate ganache—all layered into one simple, satisfying dessert.

There’s no need to overcomplicate this recipe. A good boxed brownie mix already gives you a reliable, fudgy base, which is exactly what you want here!

Using a mix saves time and removes the guesswork. Instead of worrying about texture or measuring a bunch of ingredients, you can focus on the layers that make these brownies stand out. It’s one of those shortcuts that actually makes the whole recipe more approachable without sacrificing flavor.

These brownies are rich, but not overwhelming. The chocolate is deep and fudgy, not dry or cakey. The peanut butter layer adds a creamy, slightly salty contrast that keeps everything balanced.

Then the ganache on top smooths everything out with a soft, chocolatey finish. When all three layers come together, the texture is just as good as the flavor—dense, creamy, and just a little bit indulgent!

How to make the best Buckeye Brownies:

Preheat your oven according to the brownie mix instructions and line an 8×8 or 9×9-inch baking pan with parchment paper.
Prepare the brownie batter as directed on the box, pour it into the prepared pan, and bake as instructed. Let the brownies cool completely.
In a mixing bowl, combine the peanut butter, softened butter, powdered sugar, ¼ cup heavy whipping cream, and vanilla extract, then mix until the mixture is smooth and spreadable.
Evenly spread the peanut butter frosting over the cooled brownies.
Place the chocolate chips in a microwave-safe bowl. Pour the remaining heavy cream over the chocolate chips and microwave for 40 seconds. Let sit for 1 minute, then whisk until smooth.
Pour the ganache over the peanut butter layer and spread evenly. Transfer to the fridge until set.
Slice into squares before serving!

Buckeye Brownies are one of those desserts that work for almost any situation. They’re easy enough to throw together on a weeknight, but they also feel special enough to bring to a party or holiday gathering.

They’re also a guaranteed crowd-pleaser. Chocolate and peanut butter is one of those combinations that almost everyone loves, and this recipe leans all the way into that.

If you want something that feels homemade but doesn’t take a ton of effort, this is it!

My top tips:

LINE YOUR PAN: Use parchment paper to fully line the baking pan, leaving extra overhang on the sides. This makes it easier to lift the brownies out in one piece for neater slicing later on!
BROWNIE MIX: You already know I had to throw a shortcut in here somewhere so we’re using a boxed brownie mix to make this recipe even easier! I swear the Ghirahdelli double chocolate brownie mix is just as good (if not better) than any other brownie recipe I’ve tried. If you’d still like to make yours from scratch, just be sure you use a recipe that traditionally fits a 9×9 pan.
COOLING: Make sure the brownies are fully cooled before frosting. If they’re even slightly warm, the peanut butter layer can melt and lose its texture.
PEANUT BUTTER TOPPING: If you have an electric mixer, I recommend bringing it out to combine the peanut butter frosting. I find the peanut butter mixture is fluffier, smoother and comes together much easier this way.
GANACHE: You want to avoid boiling the heavy cream for ganache because overheating can scorch the cream and cause the ganache to split/seperate. Simply make sure it is hot enough to melt the chocolate, then let your stirring do the rest of the work!
SLICING: Once the ganache is added, chill the brownies before slicing. This helps keep the layers intact and makes for cleaner slices. If you can, I even recommend making them a day ahead of time and letting them chill overnight so that the layers have time to solidify before slicing.
LEFTOVERS: Store the brownies in an airtight container at room temperature for 2-3 days or in the refrigerator for up to 5 days.

Looking for more brownie desserts? Check these out!

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