Buckeye Brownies combine the rich indulgence of chocolate with creamy peanut butter, and you will love this dessert! With a fudgy brownie base, a thick peanut butter‑fudge layer, and a glossy chocolate topping, these brownies bring together those flavors in one bar. They’re great for chocolate and peanut butter lovers alike, easy to pull together, and perfect for sharing with friends or family.
Why You’ll Love This Recipe
You’ll love this recipe because it delivers three classic dessert favorites in one: a decadent brownie base, a smooth peanut butter‑fudge layer, and a luscious chocolate topping. It’s a flavor trio that hits on sweet, salty, creamy, and chocolatey all at once. It’s also quite uncomplicated: you can use a boxed brownie mix if you like (for speed), yet still end up with a decadent result. Plus, the result looks impressive — ideal for parties or as a treat to spoil yourself.
Ingredients
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1 package fudge brownie mix (13×9‑inch pan size)
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½ cup butter + 6 tablespoons butter, divided
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1 cup creamy peanut butter
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2 cups confectioners’ sugar
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6 ounces semisweet or dark chocolate chips
Step‑by‑Step: How to Make Buckeye Brownies
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Preheat your oven and grease a 13×9‑inch baking pan (or line it for easier removal).
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Prepare the brownie mix according to the package directions, pour it into the greased baking pan, bake until done, then allow it to cool completely.
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While the brownies cool, prepare the peanut butter layer: in a large microwave‑safe bowl, melt the ½ cup butter together with the 1 cup creamy peanut butter (30‑60 seconds on high, stirring once the butter is melted). Then stir in the 2 cups confectioners’ sugar until smooth. Evenly layer the mixture on top of the cooled brownies.
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Next, make the chocolate topping: in another large microwave‑safe bowl, melt the remaining 6 tablespoons butter with the 6 ounces of chocolate chips. Microwave in 30‑second increments, stirring between each interval until the mixture is fully melted and smooth. Spread this over the peanut butter layer.
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Let the brownies cool (you may refrigerate them to set faster) until the topping is firm, then cut into squares and serve.
Helpful Tips
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Make sure the brownie base is fully cooled before applying the peanut butter layer — if it’s too warm, the layer may melt into the brownie and you’ll lose the distinct layers.
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When melting chocolate and butter for the topping, stir well between microwave intervals to avoid overheating or burning the chocolate.
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For clean cutting, use a sharp knife and wipe it between cuts for neat squares.
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If you prefer firmer layering, you can chill the peanut butter layer for a short time before adding the chocolate topping.
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Use a good quality creamy peanut butter (avoid natural separating types) for the best texture and flavor.
Substitutions And Variations
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Brownie base: Instead of a boxed mix, you can use a homemade brownie recipe if you prefer from‑scratch. Many recipes online show how to make a rich fudgy brownie base.
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Nut butter: If someone has a peanut allergy, you could substitute almond butter or sunflower butter in place of peanut butter (though flavor will change).
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Chocolate topping: You could use milk chocolate, dark chocolate, or even white chocolate for a twist. Some recipes use a ganache made with heavy cream instead of butter.
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Add‑ins: For extra texture, you might sprinkle chopped peanuts, pretzels, or crushed cookies on the peanut butter layer before topping with chocolate.
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Pan size & thickness: You can use a 9×9‑inch pan for a thicker bar, or a 9×13 for more servings; adjust layer thickness accordingly.
Storage Instructions
Store the brownies in an airtight container. They can be kept at room temperature if your kitchen is cool, for up to about 5 days, but for the best texture and topping stability, it’s often recommended to refrigerate them.
For longer storage: after fully cooling, you can freeze individual squares wrapped well (plastic wrap + foil) for up to 3 months. Let thaw in the refrigerator or at room temperature before serving.
Nutritional Information
Per piece (approximate values):
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Calories: 310
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Fat: 21 g
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Saturated Fat: 8 g
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Cholesterol: 34 mg
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Sodium: 168 mg
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Carbohydrates: 29 g
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Sugars: 23 g
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Fiber: 1 g
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Protein: 4 g
Serving Suggestions
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Serve the brownies slightly chilled, and allow them to sit a few minutes at room temperature before eating for the best texture.
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Pair with a cold glass of milk or a cup of strong coffee to balance the richness.
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For a dessert platter, cut into small squares and serve alongside fresh fruit (like strawberries) or vanilla ice cream.
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These brownies are great for bake sales, potlucks, and holiday gatherings — their layered look and flavor make them stand out.
Frequently Asked Questions About Buckeye Brownies
Can I use natural peanut butter (the kind where oil separates) instead of “regular” creamy peanut butter?
Yes, you can, but it’s not ideal. Many bakers recommend using a shelf‑stable creamy peanut butter (such as standard commercial brands) because it has the right texture and consistency. Natural peanut butter may have excess oil and a looser texture, which can affect the firmness of the peanut butter layer.
Do I have to refrigerate the brownies, and will they be too hard if chilled?
You don’t have to refrigerate them, but doing so helps the chocolate topping set firmly and keeps the peanut butter layer stable. Many sources mention refrigeration for best results, especially in warm kitchens. If you store them in the fridge, you may want to take them out about 10‑15 minutes before serving so the texture softens slightly for best enjoyment.
Can I change the pan size or make fewer servings?
Absolutely. If you use a smaller pan (for example, 9×9‑inch) you’ll get thicker bars; if you use a larger pan, you’ll get thinner ones. Just adjust baking time and layer thickness accordingly.
Final Thoughts
Thank you for trying out this Buckeye Brownies recipe! I hope you enjoy making and sharing it as much as I do. With its ease of preparation and amazing flavor of chocolate plus peanut butter, it’s a dessert that truly delivers. Whether you’re baking for family, friends, or just treating yourself, these brownies are a satisfying and flavor-packed choice. Enjoy the layers, relish each bite, and know you’re part of the food‑loving community I’m so happy you’re in. Happy baking!
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Buckeye Brownies
- Total Time: 45 minutes
- Yield: 24 squares 1x
Description
Buckeye Brownies combine a chewy fudge brownie base with a sweet peanut butter layer and smooth chocolate topping. This layered dessert is easy to make and full of rich, crowd-pleasing flavors.
Ingredients
1 package fudge brownie mix (13×9-inch pan size)
½ cup butter + 6 tablespoons butter, divided
1 cup creamy peanut butter
2 cups confectioners’ sugar
6 ounces semisweet or dark chocolate chips
Instructions
-
Preheat your oven and grease a 13×9‑inch baking pan (or line it for easier removal).
-
Prepare the brownie mix according to the package directions, pour into the greased baking pan, bake until done, then allow it to cool completely.
-
While the brownies cool, prepare the peanut butter layer: in a large microwave‑safe bowl, melt the ½ cup butter together with the 1 cup creamy peanut butter (30‑60 seconds on high, stirring once the butter is melted). Then stir in the 2 cups confectioners’ sugar until smooth. Evenly layer the mixture on top of the cooled brownies.
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Next, make the chocolate topping: in another large microwave‑safe bowl, melt the remaining 6 tablespoons butter with the 6 ounces chocolate chips. Microwave in 30‑second increments, stirring between each interval until the mixture is fully melted and smooth. Spread this over the peanut butter layer.
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Let the brownies cool (you may refrigerate them to set faster) until the topping is firm, then cut into squares and serve.
Notes
For clean cuts, wipe the knife between slices. You can refrigerate or freeze leftovers in an airtight container.
- Prep Time: 20 minutes
- Cook Time: 25 minutes
- Category: Dessert
Nutrition
- Serving Size: 1 square
- Calories: 310
- Sugar: 23g
- Carbohydrates: 29g
- Protein: 4g





