Reeses Brownies with Peanut Butter Cup Topping have completely transformed my dessert game! As someone who has always had a weakness for the perfect combination of chocolate and peanut butter, these decadent treats satisfy that craving in the most indulgent way possible. The fudgy brownie base topped with a layer of peanut butter and crowned with chopped Reese’s cups creates an irresistible dessert that disappears within minutes at any gathering. If you’re also a fan of Reese’s Pieces Cookies, you’ll definitely appreciate this masterpiece that brings together all the flavors you love in a rich, square package.
Nutritional Benefits
While these brownies are definitely an indulgence, they do offer some nutritional benefits. Peanut butter contains protein, healthy fats, and antioxidants. Dark chocolate (if used in the brownie base) contains flavonoids that may help reduce inflammation and improve heart health.
| Nutrition | Amount per Serving |
|---|---|
| Calories | 385 |
| Carbohydrates | 42g |
| Protein | 6g |
| Fat | 22g |
| Saturated Fat | 9g |
| Fiber | 2g |
| Sugar | 32g |
Ingredients & Substitutions

| Ingredient | Role | Possible Substitutions |
|---|---|---|
| 1 cup unsalted butter | Adds richness and moisture | Coconut oil or vegetable oil |
| 2 cups granulated sugar | Sweetens and adds structure | Brown sugar or coconut sugar |
| 4 large eggs | Binds ingredients and adds structure | Flax eggs (1 tbsp ground flaxseed + 3 tbsp water per egg) |
| 1 tbsp vanilla extract | Adds flavor | Almond extract |
| 1 cup all-purpose flour | Provides structure | 1:1 gluten-free flour blend |
| 1 cup unsweetened cocoa powder | Provides chocolate flavor | Dutch-processed cocoa |
| 1/2 tsp salt | Enhances flavor | Sea salt |
| 1 cup creamy peanut butter | Creates middle layer | Almond butter or sunflower seed butter |
| 1/4 cup powdered sugar | Sweetens peanut butter layer | Powdered monk fruit sweetener |
| 2 cups chopped Reese’s peanut butter cups | Creates topping | Chocolate chips and extra peanut butter drizzle |
Equipment Needed
1. 9×13 inch baking pan
2. Parchment paper
3. Mixing bowls (large and medium)
4. Electric mixer or stand mixer
5. Spatula
6. Measuring cups and spoons
7. Knife or bench scraper for cutting
8. Cooling rack
Step-by-Step Instructions

1. Preheat and Prepare: Set your oven to 350°F (175°C). Line your 9×13 inch baking pan with parchment paper, leaving some overhang on the sides for easy removal.
2. Make the Brownie Batter: In a large bowl, melt the butter and let it cool slightly. Add the sugar and mix well. Beat in the eggs one at a time, then add the vanilla extract.
3. Add Dry Ingredients: Sift together the flour, cocoa powder, and salt. Gradually add the dry mixture to the wet ingredients, stirring just until combined. Don’t overmix.
4. Bake the Brownies: Pour the batter into the prepared pan and spread it evenly. Bake for 25-30 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs. Let cool completely.
5. Prepare Peanut Butter Layer: In a medium bowl, mix the peanut butter with powdered sugar until smooth and spreadable. Once the brownies are completely cool, spread this mixture evenly over the top.
6. Add the Topping: Chop Reeses Brownies with Peanut Butter Cup Topping into small pieces and sprinkle them over the peanut butter layer, pressing gently so they adhere.
7. Set and Slice: Refrigerate for at least 30 minutes to set the layers. Remove from the pan using the parchment paper overhang, and cut into squares.
8. Enjoy: Let the brownies come to room temperature before serving for the best texture and flavor experience of these Reese’s Pieces Cookies inspired treats.
Troubleshooting & Pro Tips
– Brownie too dry? Be careful not to overbake. They should still be slightly fudgy when you remove them from the oven.
– Peanut butter layer too runny? Add more powdered sugar, a tablespoon at a time, until it reaches a spreadable consistency.
– Brownies difficult to cut? Use a warm knife (run it under hot water and dry it) for cleaner cuts.
– Pro Tip: For extra decadence, drizzle some melted chocolate over the top after adding the Reese’s cups.
– Flavor Enhancement: Add a sprinkle of flaky sea salt on top to balance the sweetness.
Storage & Make-Ahead Tips
– Room Temperature: Store in an airtight container for up to 3 days.
– Refrigerator: Keep for up to a week. The cooler temperature will make the brownies more fudgy.
– Freezer: These brownies freeze exceptionally well for up to 3 months. Wrap individual pieces in plastic wrap, then place in a freezer bag.
– Make-Ahead: You can make the brownie base 1-2 days in advance, then add the peanut butter layer and topping before serving.
– Thawing: Allow frozen brownies to thaw overnight in the refrigerator or for about an hour at room temperature.
Conclusion
These Reeses Brownies with Peanut Butter Cup Topping are the ultimate treat for anyone who loves the classic chocolate and peanut butter combination. The fudgy brownie base, creamy peanut butter layer, and generous topping of chopped Reese’s cups create a dessert that’s greater than the sum of its parts. Whether you’re making these for a special occasion or just to satisfy your sweet tooth, they’re sure to impress. And if you’re a fan of Reese’s Pieces Cookies, this brownie variation gives you all those flavors in a deliciously different format.

FAQ
Can I use a boxed brownie mix instead of making brownies from scratch?
Yes! To save time, you can use your favorite boxed brownie mix for the base. Just follow the package instructions and then continue with the peanut butter layer and topping.
How do I know when the brownies are done baking?
Insert a toothpick into the center – it should come out with a few moist crumbs, but not wet batter. Remember that brownies continue to cook slightly as they cool.
Can I make these brownies gluten-free?
Absolutely! Simply substitute the all-purpose flour with a 1:1 gluten-free flour blend.
What if I don’t have Reese’s cups on hand?
You can substitute with chocolate chips mixed with a dollop of peanut butter, or try making your own Home Made Reese Cups for the topping.
Can I reduce the sugar in this recipe?
Yes, you can reduce the granulated sugar to 1½ cups without significantly affecting the texture. For the peanut butter layer, consider using a natural peanut butter with no added sugar.
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