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Buckeye Brownies
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5 from 3 votes

Fudgy Buckeye Brownies

Buckeye Brownies are a showstopping three-layer dessert made with a fudgy homemade brownie base, a thick and creamy peanut butter filling, and a smooth chocolate ganache topping. Every bite is rich, indulgent, and packed with that classic chocolate-peanut butter flavor. Easy enough for beginner bakers, impressive enough for any celebration.
Prep Time30 minutes
Cook Time45 minutes
Chill Time1 hour 45 minutes
Total Time3 hours
Course: Dessert
Cuisine: American
Keyword: buckeye brownies, peanut butter brownies
Servings: 16 brownies
brownies
Author: Olya Shepard

Equipment

  • 8x8 square baking pan

Ingredients

Brownie Base

  • ½ cup dark chocolate , chopped
  • 10 tablespoon unsalted butter
  • 1 ¼ cup light brown sugar, packed
  • 2 large eggs, room temperature
  • 1 teaspoon vanilla extract
  • ½ cup cocoa powder, use 60-70% cocoa, Dutch processed preferred
  • ½ cup all-purpose flour
  • ½ tsp 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 salt, (optional, depending on 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 salt, (optional)

Instructions

Brownie Base

  • Preheat the oven to 325°F (163°C). Line an 8×8 or 9×9-inch pan with parchment paper.
  • Melt the butter and chopped chocolate together over low heat or in short microwave bursts. Stir until smooth.
  • Add granulated and brown sugar and stir until glossy. Then whisk in the eggs and vanilla until thickened.
  • Sift in flour, cocoa powder, salt, and stir just until combined, don’t overmix.
  • Spread batter into the prepared pan and smooth the top.
  • Bake for 45–55 minutes or until a toothpick inserted into the center comes out with moist crumbs. Let cool completely in the pan before adding layers.

🤎Shortcut alert!🤎

  • You can use your favorite brownie box mix instead of making the entire thing from scratch 🫠. Just make sure to add 2 eggs for extra moist brownie batter; and then all you have to do is work on the super simple peanut butter layer and the ganache! 🤎

Peanut Butter Layer

  • In a mixing bowl, beat peanut butter and softened butter together until smooth and fluffy.
  • Mix in vanilla and salt (if using), then gradually beat in the powdered sugar until thick and spreadable.
  • Spread evenly over the cooled brownie base using an offset spatula. Chill in the refrigerator for 15–30 minutes.

Chocolate Ganache

  • Heat cream in a small saucepan or in the microwave until just simmering (not boiling). Pour over the chocolate in a heatproof bowl and let sit for 1–2 minutes.
  • Stir gently until smooth and glossy. Add butter and a pinch of salt if using.
  • Let the ganache cool for 5–10 minutes, then pour over the chilled peanut butter layer and spread evenly. Chill for at least 1 hour until set.
  • Slice and serve!
Nutrition Facts
Fudgy Buckeye Brownies
Amount per Serving
Calories
493
% Daily Value*
Fat
 
32
g
49
%
Saturated Fat
 
16
g
100
%
Trans Fat
 
1
g
Polyunsaturated Fat
 
3
g
Monounsaturated Fat
 
11
g
Cholesterol
 
66
mg
22
%
Sodium
 
162
mg
7
%
Potassium
 
281
mg
8
%
Carbohydrates
 
49
g
16
%
Fiber
 
3
g
13
%
Sugar
 
39
g
43
%
Protein
 
7
g
14
%
Vitamin A
 
565
IU
11
%
Vitamin C
 
0.04
mg
0
%
Calcium
 
49
mg
5
%
Iron
 
2
mg
11
%
* Percent Daily Values are based on a 2000 calorie diet.

Nutritional information is provided as a courtesy only. This information comes from online calculators. Although whatsinthepan.com attempts to provide accurate nutritional information, these figures are only estimates.

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