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buckeye brownies on sheet pan with peanut crumbs and bowl of peanut butter on marble surface.

Buckeye Brownies

Three layers of deliciousness! These homemade Buckeye Brownies are everything you love about the classic candy, but in bar form. Every bite is perfectly balanced between chocolate and peanut butter, salty and sweet, making it a truly irresistible treat!
Course: Dessert
Cuisine: American
Prep Time: 30 minutes
Cook Time: 26 minutes
Refrigeration Time: 30 minutes
Total Time: 1 hour 26 minutes
Servings: 24 brownies
Calories: 609kcal

Ingredients

Brownie Layer

  • cups bittersweet chocolate
  • cup unsalted butter
  • 6 large eggs room temperature
  • cups granulated sugar
  • ½ teaspoon salt
  • 1 Tablespoon vanilla extract
  • cups all purpose flour

Peanut Butter Layer

  • 2 cups smooth peanut butter
  • ½ cup unsalted butter
  • 3/16 teaspoon salt
  • ½ teaspoon vanilla extract
  • cups powdered sugar sifted

Chocolate Layer

Instructions

Brownie Layer

  • Heat oven to 350℉/177℃.
  • Spray a 9-inch x 13-inch pan with baking spray. Set aside. (You can line with parchment before spraying, if desired.)
  • In a medium bowl, combine chocolate and butter.
  • Microwave in 15 second increments, stirring after each, until melted and smooth. Set aside.
  • In a large bowl, whisk eggs, sugar, salt, and vanilla together.
  • Whisk in chocolate.
  • Fold in flour.
  • Pour into prepared pan.
  • Bake for 20 minutes. Set aside.

Peanut Butter Layer

  • Combine peanut butter and butter in a medium bowl.
  • Microwave in 30 second increments, stirring after each, until melted and smooth.
  • Stir in salt and vanilla.
  • With a hand mixer, beat in powdered sugar.
  • Spread evenly on top of brownie layer.
  • Refrigerate for at least 30 minutes, or until set.

Chocolate Layer

  • Combine chocolate and cream in a medium bowl.
  • Microwave in 15 second increments, stirring well after each, until chocolate is melted, and mixture is smooth.
  • Spread evenly over top of peanut butter layer.
  • Place in fridge for 30 minutes, or until set/ready to serve.

Notes

  • Use an oven thermometer to ensure accurate cooking temperatures.
  • You can substitute semi-sweet chocolate for the bittersweet.
  • You can substitute salted butter for the unsalted butter with the following amendments: Brownie Layer - reduce salt to 3/16 teaspoon. Peanut Butter Layer - omit salt altogether.

Nutrition

Serving: 1brownie | Calories: 609kcal | Carbohydrates: 50g | Protein: 10g | Fat: 42g | Saturated Fat: 21g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 14g | Trans Fat: 0.5g | Cholesterol: 93mg | Sodium: 180mg | Potassium: 372mg | Fiber: 4g | Sugar: 36g | Vitamin A: 629IU | Vitamin C: 0.1mg | Calcium: 55mg | Iron: 3mg