Buckeye Brownies
Buckeye brownies are the perfect dessert that combines the rich, fudgy goodness of brownies with the creamy, peanut buttery flavor reminiscent of the beloved Buckeye candy. The moment you sink your teeth into a warm brownie topped with a velvety peanut butter frosting and smooth chocolate ganache, you’ll understand why these treats are a crowd favorite. Each bite offers a delightful balance of textures—the dense brownie base, the creamy peanut butter layer, and the luscious chocolate finish.
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I remember the first time I made buckeye brownies; they quickly disappeared at the family gathering. Everyone was raving about them, and I knew I had to add this recipe to my regular baking rotation. These brownies are not only easy to whip up, but they also strike the right balance between indulgent and comforting. So, let’s dive into making your new favorite dessert!
Why You’ll Love This Recipe
- Simple & Quick: These indulgent treats come together in no time, making them perfect for impromptu gatherings.
- Irresistible Flavor: Experience the heavenly combination of smooth chocolate, rich peanut butter, and fudgy brownie base.
- Eye-Catching Appeal: With their layered look, these brownies are sure to impress anyone who sees (or tastes) them.
- Flexible Serving: These brownies are perfect for any occasion—be it a casual snack, a holiday treat, or a potluck dessert.
- Diet-Friendly Options: Need a gluten-free option? Simply swap in a gluten-free flour blend, and you’re good to go!
Ingredients You’ll Need
- 6 oz semisweet chocolate (1 cup): This chocolate forms the fudgy base for the brownies. Make sure it’s good quality to achieve that rich flavor.
- ½ cup salted butter: Butter adds moisture and richness. If you’re concerned about salt content, unsalted butter works well too.
- 2 large eggs: The eggs bind the ingredients together, giving the brownies structure. Bring them to room temperature for better mixing.
- ¾ cup granulated sugar: This sweetener enhances flavor and texture. Brown sugar could be an alternative for added moisture.
- 2 teaspoons pure vanilla extract: Authentic vanilla adds depth to the brownies. Avoid imitation extracts if possible.
- ¾ cup all-purpose flour: Flour creates the structure of the brownies. For a gluten-free twist, try almond or oat flour as a substitute.
- 1 tablespoon unsweetened cocoa powder: This enhances the chocolate flavor. Choose high-quality cocoa for the best taste.
- ¼ teaspoon fine sea salt: Salt balances sweetness and enriches flavor. Adjust if using salted butter.
- ¾ cup creamy peanut butter: Essential for that signature peanut butter layer. Use natural peanut butter for a better texture and taste.
- ¼ cup salted butter (softened): This helps create a smooth peanut butter layer. Softening allows for easier mixing.
- ½ teaspoon pure vanilla extract: Just like in the brownie mix, this makes the peanut butter layer more flavorful.
- ¼ teaspoon fine sea salt: A pinch enhances the flavor of the peanut butter.
- 1 ½ cups powdered sugar: This creates the creamy frosting. For a sweeter touch, adjust the amount to your taste.
- 1-2 tablespoons whole milk (room temperature): This fines the consistency of the frosting. Use more for a thinner spread.
- ½ cup heavy cream: This is the base for the ganache. Full-fat cream will yield the richest flavor.
- 1 cup semisweet chocolate (6 ounces): This makes the ganache topping; more chocolate equals a more luscious finish.
How to Make Buckeye Brownies
- Preheat & Prepare: Preheat your oven to 350 degrees Fahrenheit (177 degrees Celsius). Line a 9×9” baking dish with parchment paper and lightly grease it for easy removal later.
- Mix Dry Ingredients: In a small bowl, combine ¾ cup all-purpose flour, 1 tablespoon unsweetened cocoa powder, and ¼ teaspoon fine sea salt. Set this mixture aside to keep all the dry ingredients together.
- Melt the Chocolate and Butter: In a microwave-safe bowl or over low heat on the stovetop, melt 6 oz semisweet chocolate and ½ cup salted butter. Stir until smooth and shiny. Allow it to cool slightly.
- Beat Eggs and Sugar: In a mixing bowl, beat the 2 large eggs for just 1 minute. Add in ¾ cup granulated sugar and continue mixing for another minute until well combined.
- Incorporate the Chocolate Mixture: With the mixer on low speed, pour in the cooled chocolate and butter mixture along with 2 teaspoons pure vanilla extract. Mix until fully incorporated.
- Combine Wet and Dry Ingredients: Gradually add the dry ingredient mixture to the wet ingredients, mixing just until combined. The brownie batter should be thick and lump-free.
- Spread the Batter: Evenly spread the brownie batter into the prepared baking pan. Make sure it fills the pan completely.
- Bake: Place the pan in the preheated oven and bake for about 25 to 28 minutes. The top should look set, and the brownies will still be slightly jiggy in the center.
- Cool Completely: Allow the brownies to cool completely in the pan on a wire cooling rack. To expedite the process, you can pop them into the refrigerator or freezer briefly.
- Make the Peanut Butter Layer: In a mixing bowl, beat ¼ cup softened salted butter until smooth. Add in ¾ cup creamy peanut butter and continue mixing until fully combined. Integrate ½ teaspoon pure vanilla extract and ¼ teaspoon fine sea salt until smooth.
- Add the Sugar: Gradually add 1 ½ cups powdered sugar, mixing in 1 cup at a time to avoid a sugar cloud. Beat until fully integrated after each addition.
- Adjust Consistency: Pour in 1 tablespoon whole milk, mixing well. If the mixture is too thick, add a bit more milk until you achieve your desired fluffy consistency.
- Spread the Peanut Butter Mixture: After the brownies have cooled, carefully spread the peanut butter mixture over the brownie base. Refrigerate for a bit to set the layer faster.
- Prepare Ganache: Heat ½ cup heavy cream in a small saucepan over medium heat until it just begins to bubble around the edges—don’t let it boil. Remove from heat and whisk in 1 cup semisweet chocolate until it’s smooth.
- Thicken Ganache: Allow the ganache to cool slightly while whisking frequently until it thickens a bit.
- Finish the Brownies: Pour the ganache over the peanut butter layer, spreading it evenly.
- Set the Brownies: Let the brownies chill in the fridge or sit at room temperature until the ganache sets completely.
- Slice and Serve: Once set, cut into squares, and enjoy your delicious creation!
Storing & Reheating
For optimal freshness, store your buckeye brownies in an airtight container at room temperature for up to 3 days. Alternatively, you can refrigerate them for up to a week. If you’re looking to keep them even longer, the brownies can be frozen for up to 3 months. Just wrap them tightly in plastic wrap and place them in a freezer-safe container. When you’re ready to enjoy, simply thaw them at room temperature or warm them briefly in the microwave. Note that freezing may alter the texture slightly, so it’s best to enjoy them fresh whenever possible.
Chef’s Helpful Tips
- Avoid overmixing after adding the flour to preserve the fudgy texture of the brownies; just mix until no dry streaks remain.
- For the best ganache, ensure the cream is heated just enough to dissolve the chocolate without boiling. It can make a difference in flavor and texture.
- Prefer a more peanut buttery flavor? Feel free to increase the amount of peanut butter in the frosting; just adjust the powdered sugar to balance it out.
- If you want to create a decorative finish, drizzle some leftover ganache on top after setting the brownies.
These buckeye brownies are bound to be a new staple in your dessert repertoire. Each bite is a celebration of chocolate and peanut butter that is sure to please friends and family alike. Feel free to experiment with the ingredients and make them your own, and don’t forget to enjoy every delicious morsel!

Recipe FAQs
How do I know when the brownies are done baking?
The best way to check if your brownies are done is to look for a slightly set top that still has a slight jiggle in the middle. You can also insert a toothpick in the center; it should come out with a few moist crumbs, not wet batter.
Can I use crunchy peanut butter instead of creamy?
Absolutely! Using crunchy peanut butter will add a nice texture to your frosting layer, giving it a little extra crunch alongside the smooth brownie base.
How long can I keep these brownies?
Buckeye brownies can be stored in an airtight container at room temperature for about 3 days. If kept in a fridge, they can hold up for about a week. For longer storage, you can freeze them for up to 3 months!
Can I make these brownies gluten-free?
Yes, you can make your buckeye brownies gluten-free by substituting regular all-purpose flour with a gluten-free flour blend. Just ensure it’s a good quality blend designed for baking to maintain the texture and flavor of the brownies.
PrintMore Desserts & Appetizers Recipes
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📖 Recipe Card

Buckeye Brownies
- Prep Time: 30 minutes
- Cook Time: 25 minutes
- Total Time: 55 minutes
- Yield: 16 servings 1x
- Category: Desserts
- Method: Baking
- Cuisine: American
Description
These Buckeye Brownies combine the rich flavor of chocolate with creamy peanut butter for an indulgent treat. Simple to prepare and sure to delight, they’re perfect for any gathering or as a sweet pick-me-up.
Ingredients
- 6 oz semisweet chocolate (1 cup)
- ½ cup salted butter
- 2 large eggs
- ¾ cup granulated sugar
- 2 teaspoons pure vanilla extract
- ¾ cup all-purpose flour
- 1 tablespoon unsweetened cocoa powder
- ¼ teaspoon fine sea salt
- ¾ cup creamy peanut butter
- ¼ cup salted butter (softened)
- ½ teaspoon pure vanilla extract
- ¼ teaspoon fine sea salt
- 1 ½ cups powdered sugar
- 1–2 tablespoons whole milk (room temperature)
- ½ cup heavy cream
- 1 cup semisweet chocolate (6 ounces)
Instructions
- Preheat the oven to 350°F (177°C).
- Line a 9×9” baking dish with parchment paper and lightly grease it; set aside.
- In a bowl, melt 6 oz of semisweet chocolate and ½ cup of salted butter together until smooth.
- Mix in 2 large eggs, ¾ cup granulated sugar, and 2 teaspoons pure vanilla extract into the melted chocolate mixture.
- Combine ¾ cup all-purpose flour, 1 tablespoon unsweetened cocoa powder, and ¼ teaspoon fine sea salt; then fold into the chocolate mixture until just combined.
- Pour the batter into the prepared baking dish and spread evenly; bake for 20-25 minutes until a toothpick comes out clean.
- While the brownies bake, prepare the peanut butter layer by mixing ¾ cup creamy peanut butter, ¼ cup softened salted butter, ½ teaspoon pure vanilla extract, ¼ teaspoon fine sea salt, and 1 ½ cups powdered sugar until smooth.
- Add 1-2 tablespoons of whole milk to reach a spreadable consistency if needed.
- Once brownies are cool, spread the peanut butter mixture evenly over the top.
- For the topping, heat ½ cup heavy cream until simmering then pour over 1 cup of semisweet chocolate and stir until smooth; let cool slightly.
- Pour the chocolate ganache over the peanut butter layer and spread it evenly. Let it set before cutting into squares.
Notes
Allow the brownies to cool completely before adding the peanut butter layer for best results.
For a firmer ganache, let it cool a bit longer before pouring it over the brownies.
These brownies can be stored in an airtight container for up to a week.
Nutrition
- Serving Size: 1 brownie
- Calories: 320
- Sugar: 25g
- Sodium: 150mg
- Fat: 14g
- Saturated Fat: 6g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 42g
- Fiber: 2g
- Protein: 6g
- Cholesterol: 50mg
