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5.0 from 3 votes

Buckeye Brownies

Buckeye brownies are known for their three layers of rich decadent goodness! A fudgy brownie base gets a sweet peanut butter layer then topped with chocolate ganache. It's a chocolate peanut butter lover's dream brownie!

Prep Time
25 mins
Cook Time
25 mins
chill time
30 mins
Total Time
1 hr 40 mins
Servings: 24 servings
Calories: 402 kcal
Course: Dessert

Ingredients

Brownie Layer
  • 6 ounces Dark chocolate, chopped
  • ¾ cup unsalted butter
  • 1 ¼ granulated sugar
  • ⅓ cup dark brown sugar, packed
  • 3 large eggs, room temperature
  • ¾ teaspoon salt
  • 1 tablespoon cornstarch
  • ¼ teaspoon baking powder
  • ¼ cup cocoa powder
  • 1 cup all-purpose flour
Peanut Butter Layer
  • 2 cups creamy peanut butter
  • ⅓ cup unsalted butter, room temperature
  • 1 ½ teaspoon vanilla extract
  • 2 cups powdered sugar
  • 2 tablespoons milk
Chocolate Ganache
  • 1 ½ cups semi-sweet chocolate chips
  • 2 tablespoons vegetable oil

Instructions

Brownie Layer
    Cup of Yum
  1. Preheat the oven to 350 degrees Fahrenheit. Grease a 9x13 pan and line with parchment paper leaving a 1-inch overhang on both sides.
  2. In a large bowl, melt 6 ounces dark chocolate, and ¾ cup unsalted butter together in 30-second intervals. Once fully melted, stir in 1 ¼ granulated sugar, ⅓ cup dark brown sugar, and 3 large eggs,.
  3. In a medium bowl, sift together ¾ teaspoon salt, 1 tablespoon cornstarch, ¼ teaspoon baking powder, ¼ cup cocoa powder, and 1 cup all-purpose flour. Add the dry ingredients to the wet and mix until combined.
  4. Add the brownie batter to the prepared pan and smooth with a spatula. Bake for 40-45 minutes or until a toothpick comes out clean from the center.
  5. Let the brownies cool completely before adding the other layers.
Peanut Butter Layer
  1. Add 2 cups creamy peanut butter and ⅓ cup unsalted butter, to a large bowl and beat with a hand mixer until smooth.
  2. Add 1 ½ teaspoon vanilla extract, 2 cups powdered sugar, and 2 tablespoons milk and mix until combined and creamy.
  3. Scoop or spoon the peanut butter mixture on top of the cooled brownies and use an offset spatula or knife to spread it evenly over the top, making it as smooth as you can.
Ganache
  1. Place 1 ½ cups semi-sweet chocolate chips and 2 tablespoons vegetable oil in a bowl and heat in the microwave at 20-second intervals, stirring until melted and smooth. It should be about 40-60 seconds total.
  2. Pour the ganache over the peanut butter topping and smooth. Place the pan in the fridge for at least 30 minutes to chill.
  3. Once the ganache is set, remove it from the fridge and lift the brownies from the pan. Slice into pieces and serve.

Nutrition Information

Calories 402kcal (20%) Carbohydrates 32g (11%) Protein 8g (16%) Fat 28g (43%) Saturated Fat 12g (60%) Polyunsaturated Fat 4g Monounsaturated Fat 10g Trans Fat 0.4g Cholesterol 44mg (15%) Sodium 178mg (7%) Potassium 276mg (8%) Fiber 3g (12%) Sugar 21g (42%) Vitamin A 296IU (6%) Calcium 36mg (4%) Iron 2mg (11%)

Nutrition Facts

Serving: 24servings

Amount Per Serving

Calories 402

% Daily Value*

Calories 402kcal 20%
Carbohydrates 32g 11%
Protein 8g 16%
Fat 28g 43%
Saturated Fat 12g 60%
Polyunsaturated Fat 4g 24%
Monounsaturated Fat 10g 50%
Trans Fat 0.4g 20%
Cholesterol 44mg 15%
Sodium 178mg 7%
Potassium 276mg 6%
Fiber 3g 12%
Sugar 21g 42%
Vitamin A 296IU 6%
Calcium 36mg 4%
Iron 2mg 11%

* Percent Daily Values are based on a 2,000 calorie diet.