Buckeye Brownies

These Buckeye Brownies are the ultimate indulgence for chocolate and peanut butter lovers. With a fudgy, rich brownie base, a creamy peanut butter layer, and a smooth chocolate ganache topping, every bite is a perfect blend of texture and flavor. Whether for special occasions or an anytime craving, this dessert is pure decadence.

Why You’ll Love This Recipe

This recipe brings together three irresistible layers in one delicious dessert: gooey brownies, silky peanut butter cream, and luxurious chocolate ganache. It’s a make-ahead friendly treat that holds up beautifully in the fridge and looks just as impressive as it tastes. Ideal for holidays, parties, or when you simply want a dessert that hits all the right notes of rich, sweet, and satisfying.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

Brownie Base

• ½ cup dark chocolate, chopped

• 10 tablespoons unsalted butter

• 1¼ cup light brown sugar, packed

• 2 large eggs, room temperature

• 1 teaspoon vanilla extract

• ½ cup cocoa powder (Dutch-processed preferred)

• ½ cup all-purpose flour

• ½ teaspoon salt

Peanut Butter Layer

• 1 cup creamy peanut butter (not natural-style)

• ½ cup unsalted butter, softened

• 2 cups powdered sugar, sifted

• 1 teaspoon vanilla extract

• Pinch of salt (optional, depending on the saltiness of your peanut butter)

Chocolate Ganache Topping

• 1 cup semi-sweet chocolate chips or chopped chocolate (about 6 ounces)

• ½ cup heavy cream

• 1 tablespoon unsalted butter (optional, for shine)

• Pinch of salt (optional)

Directions

Brownie Base

1. Preheat oven to 325°F. Line an 8×8-inch baking pan with parchment paper.

2. Melt the butter and chopped chocolate in a saucepan over low heat or microwave in 30-second intervals until smooth.

3. Stir in the brown sugar until glossy. Add the eggs and vanilla, whisking until thickened.

4. Sift in the cocoa powder, flour, and salt. Mix gently until just combined—don’t overmix.

5. Pour the batter into the prepared pan and smooth the surface.

6. Bake for 45–55 minutes or until a toothpick comes out with moist crumbs. Cool completely before adding layers.

Peanut Butter Layer

1. In a bowl, beat the peanut butter and softened butter until smooth and fluffy.

2. Mix in vanilla and salt (if using), then gradually beat in powdered sugar until thick and creamy.

3. Spread the mixture evenly over the cooled brownie base with an offset spatula.

4. Chill in the refrigerator for 15–30 minutes.

Chocolate Ganache

1. Heat the cream in a small saucepan or microwave until just simmering (not boiling).

2. Pour the hot cream over the chocolate in a heatproof bowl. Let sit for 1–2 minutes.

3. Stir until smooth. Add butter and a pinch of salt for added richness and shine, if desired.

4. Let the ganache cool for 5–10 minutes, then pour over the chilled peanut butter layer.

5. Spread evenly and chill for at least 1 hour until fully set.

6. Slice into squares and serve.

Servings and timing

Servings: 16 brownies
Prep time: 30 minutes
Cook time: 45 minutes
Chill time: 1 hour 45 minutes
Total time: 3 hours

Variations

• Boxed Brownie Shortcut: Use your favorite box brownie mix and simply add the peanut butter and ganache layers. Add 2 eggs to the mix for a moist texture.

• Nut-Free Version: Swap the peanut butter for sunflower seed butter or cookie butter.

• Extra Crunch: Add chopped roasted peanuts to the peanut butter layer or sprinkle on top of the ganache.

• Dark Chocolate Ganache: Use dark chocolate instead of semi-sweet for a richer finish.

• Mini Brownie Bites: Make in mini muffin tins for bite-sized treats—adjust baking time accordingly.

Storage/Reheating

Storage: Store the brownies in an airtight container in the refrigerator for up to 5 days.

Freezing: Freeze individual squares wrapped tightly in plastic wrap, then placed in a freezer-safe container. Freeze for up to 2 months. Thaw in the fridge overnight before serving.

Reheating: These brownies are best enjoyed chilled or at room temperature. Reheating isn’t necessary, but you can warm a slice briefly if you prefer the ganache to soften slightly.

FAQs

Can I use natural peanut butter?

It’s not recommended, as natural peanut butter is too oily and may not set properly in the peanut butter layer.

Can I make this recipe ahead of time?

Yes! These brownies are perfect for making a day in advance. Chill and slice when ready to serve.

Can I double the recipe?

Absolutely. Use a 9×13-inch pan for a double batch. Baking time may need a slight adjustment.

How do I know when the brownies are done baking?

Insert a toothpick into the center—if it comes out with moist crumbs (not raw batter), it’s ready.

What kind of chocolate should I use for the ganache?

Semi-sweet chocolate works best, but dark or milk chocolate can be used depending on your preference.

Is it necessary to chill between layers?

Yes, chilling helps each layer set properly and makes spreading the next layer easier.

How do I slice cleanly?

Use a sharp knife dipped in hot water and wiped clean between each cut for neat slices.

Can I use an electric mixer for the peanut butter layer?

Yes, an electric hand mixer or stand mixer will work well to create a fluffy, smooth texture.

How rich are these brownies?

Very rich—one square is typically enough to satisfy even the strongest sweet tooth!

Do these travel well?

Yes, just keep them chilled during transport, especially in warm weather.

Conclusion

Buckeye Brownies are the ultimate triple-layer dessert—rich, decadent, and full of chocolate-peanut butter perfection. Whether you’re baking for a special event or indulging in a treat-yourself moment, these brownies deliver a luxurious bite every time. They’re make-ahead friendly, freezer-safe, and always a hit wherever they go.

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