Buckeye Brownie Cookies

If you’re a chocolate and peanut butter lover, these Brownie Buckeye Cookies are about to become your new obsession. This recipe takes the best parts of a fudgy, crinkle-top brownie and combines it with the iconic creamy center of an Ohio Buckeye candy. Each cookie features a deep, dark cocoa base that is soft and dense, topped with a smooth peanut butter topping and draped in a rich chocolate ganache.

The contrast between the saltiness of the peanut butter and the intense richness of the brownie makes these a standout for bake sales, holiday cookie trays, or just a weekend treat. They are decadent, impressive to look at, and surprisingly easy to master. Whether you are a fan of traditional Buckeye candies or just looking for the ultimate “loaded” cookie, these are the gold standard for chocolate-peanut butter fusion.

Ingredients

The Brownie Cookie Base

• 1 cup (227g) Unsalted butter, melted and cooled
• 1 cup (200g) Light brown sugar, packed
• 1/2 cup (100g) Granulated sugar
• 1 Large egg
• 1 Egg yolk, room temperature
• 2 tsp (10ml) Pure vanilla extract
• 1 1/2 cups (188g) All-purpose flour
• 1 cup (100g) Dark cocoa powder (Dutch-processed recommended)
• 1 1/2 tsp (9g) Salt
• 1 tsp (5g) Baking soda
• 1 tsp (5g) Baking powder
• 2 cups (340g) Semi-sweet chocolate chips

The Buckeye Topping

• Peanut Butter Filling: 1 cup creamy peanut butter, 6 tablespoons softened butter, 2 cups of powdered sugar and 1 1/2 tsp vanilla extract
• Chocolate Ganache: 1 cup chocolate chips melted with ¼ cup heavy cream.
• Flaky Sea Salt (optional garnish)

Instructions

1. Whisk the Wet: In a large bowl, whisk the melted and cooled butter with both sugars. Add the egg, yolk, and vanilla, whisking until smooth and glossy.

2. Sift the Dry: Sift together the flour, cocoa powder, salt, baking soda, and baking powder. Fold into the wet mixture until just combined.

3. Mix in Chips: Stir in the chocolate chips.

4. Bake: Scoop into large balls (approx. 3.5oz) and bake at 350°F for 10–12 minutes. Let them cool completely.

5. The Buckeye Layer: Combine butter, peanut butter, powdered sugar and vanilla until smooth. Spread equal portions onto each cookie.

6. The Finish: Spoon the chocolate ganache over the peanut butter topping. Top with a pinch of flaky sea salt while the ganache is wet.

Tips for Success

• Cool the Butter: Make sure your melted butter has cooled to room temperature before adding the sugars. If the butter is too hot, it can melt the sugars and lead to a greasy cookie that spreads too thin.

• The “Brownie Crinkle”: For those classic brownie-style cracks on top, don’t overmix the batter once you add the flour. Just fold it in until the white streaks disappear.

• Don’t Overbake: These cookies are meant to be fudgy. They will look slightly underdone in the center when you pull them out, but they will firm up as they cool on the tray.

• Chill the Buckeye Filling: If your peanut butter mixture is too sticky to handle, pop it in the fridge for 15 minutes before rolling it into balls.

Storage & Shelf Life

• Room Temperature: Store in an airtight container for up to 3 days. Because of the ganache and peanut butter layer, keep them in a cool, dry spot away from direct sunlight.

• Refrigeration: These cookies actually taste incredible when cold! Store them in the fridge for up to 1 week. The brownie base stays dense and fudgy while the ganache gets a nice “snap.”

• Freezing: You can freeze the baked cookies for up to 2 months. Wrap them individually in self-sealing cookie bags to protect the ganache, then place them in a freezer bag. Thaw at room temperature for about 30 minutes before enjoying.

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