Reeses Brownies (Fudgy Chocolate PB Brownies)
These Reeses Brownies (Fudgy Chocolate PB Brownies) combine two beloved flavors in one irresistible dessert. The rich fudgy brownie base perfectly complements the creamy peanut butter swirls and chunks of Reese’s Pieces Cookies scattered throughout. Whether you’re baking for a special occasion or just satisfying a sweet tooth craving, these decadent brownies deliver the perfect balance of chocolate and peanut butter in every bite.
Nutritional Benefits
While these treats are certainly indulgent, they do offer some nutritional benefits. The peanut butter provides protein and healthy fats, while dark chocolate contains antioxidants. When enjoyed in moderation, these Reeses Brownies can be part of a balanced approach to treats.
| Nutrition (per serving) | Amount |
|---|---|
| Calories | 375 |
| Carbohydrates | 42g |
| Protein | 6g |
| Fat | 21g |
| Fiber | 3g |
| Sugar | 28g |
Ingredients & Substitutions

| Ingredient | Role | Possible Substitutions |
|---|---|---|
| 1 cup unsalted butter | Provides richness and moisture | Coconut oil (for dairy-free option) |
| 2 cups granulated sugar | Sweetness and structure | Coconut sugar or brown sugar |
| 4 large eggs | Binding and structure | Flax eggs (for vegan option) |
| 1 tablespoon vanilla extract | Flavor enhancer | Almond extract (use half the amount) |
| 1 cup all-purpose flour | Structure | 1:1 gluten-free flour blend |
| 1 cup unsweetened cocoa powder | Chocolate flavor | Dutch-processed cocoa powder |
| 1 teaspoon salt | Flavor enhancer | Sea salt |
| 1 cup creamy peanut butter | Peanut butter swirl | Almond or cashew butter |
| 1 cup Reese’s peanut butter cups, chopped | Texture and flavor boost | Chocolate chips and peanut butter chips |
| 1/2 cup Reese’s Pieces | Crunchy texture and color | M&Ms or chocolate chips |
Equipment Needed
– 9×13 inch baking pan
– Parchment paper
– Mixing bowls (large and medium)
– Electric mixer or stand mixer
– Rubber spatula
– Wire cooling rack
– Measuring cups and spoons
– Microwave-safe bowl (for melting butter)
– Knife for cutting brownies
Step-by-Step Instructions

1. Prepare the pan: Preheat your oven to 350°F (175°C). Line a 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 in the microwave, then whisk in the sugar until well combined. Add eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
3. Add dry ingredients: Sift in the flour, cocoa powder, and salt. Gently fold until just combined, being careful not to overmix.
4. Prepare peanut butter swirl: In a separate microwave-safe bowl, heat the peanut butter for about 30 seconds until it’s easier to work with, but not fully melted.
5. Layer the batter: Pour 2/3 of the brownie batter into the prepared pan, spreading it evenly. Sprinkle half of the chopped Reese’s cups and Reese’s Pieces over the batter.
6. Create the swirl: Drop spoonfuls of the softened peanut butter across the surface, then pour the remaining brownie batter on top. Using a knife or skewer, gently swirl the batter to create a marbled effect.
7. Add toppings: Sprinkle the remaining Reese’s cups and Reese’s Pieces on top, pressing them lightly into the batter.
8. Bake: Place the pan in the preheated oven and bake for 30-35 minutes. For truly fudgy Reeses Brownies (Fudgy Chocolate PB Brownies), don’t overbake – a toothpick inserted in the center should come out with a few moist crumbs, not completely clean.
9. Cool: Allow the brownies to cool completely in the pan on a wire rack before cutting. For cleaner cuts, refrigerate for at least 1 hour before slicing.
10. Serve: Cut into squares and serve these delicious Reese’s Pieces Cookies inspired brownies at room temperature for the perfect fudgy texture.
Troubleshooting & Pro Tips
– For extra fudgy brownies: Underbake them slightly – they’ll continue to cook as they cool.
– Clean cuts: Use a sharp knife dipped in hot water and wiped clean between cuts.
– Even swirls: Don’t overdo the swirling or your patterns will become muddy.
– Prevent sticking: Make sure your parchment paper extends beyond the edges of the pan.
– Enhancing flavor: Add a sprinkle of flaky sea salt on top before baking to enhance the sweetness.
Storage & Make-Ahead Tips
– Counter storage: Store in an airtight container at room temperature for up to 3 days.
– Refrigerator: Keep fresh for up to 1 week in the refrigerator in an airtight container.
– Freezer: Wrap individual brownies in plastic wrap, then foil, and freeze for up to 3 months.
– Make ahead: These brownies actually taste better the day after baking when the flavors have had time to meld.
– Serving from frozen: Thaw at room temperature for 1-2 hours before serving.
Conclusion
These Reeses Brownies (Fudgy Chocolate PB Brownies) are the ultimate indulgence for anyone who loves the classic combination of chocolate and peanut butter. The rich, fudgy brownie base creates the perfect canvas for creamy peanut butter swirls and chunks of peanut butter cups. What makes these brownies truly special is how they transform simple ingredients into a bakery-quality dessert that’s sure to impress. Whether you’re making them for a potluck, special occasion, or just because you deserve a treat, these Reese’s Pieces Cookies inspired brownies will quickly become a favorite in your recipe collection.

FAQ
Can I make these brownies gluten-free?
Yes! Simply substitute the all-purpose flour with a 1:1 gluten-free flour blend.
How can I tell when the brownies are done?
Insert a toothpick in the center – it should come out with a few moist crumbs, not wet batter. For fudgy brownies, don’t wait until the toothpick comes out completely clean.
Can I use crunchy peanut butter instead of creamy?
Absolutely! Crunchy peanut butter will add extra texture to your brownies.
Why did my brownies turn out cakey instead of fudgy?
You may have overmixed the batter or overbaked them. For fudgy brownies, mix just until ingredients are combined and slightly underbake.
Can I add nuts to this recipe?
Certainly! Add 1/2 cup of chopped walnuts or peanuts to the batter for added crunch.
Is it necessary to line the pan with parchment paper?
While not absolutely necessary, parchment paper makes removing and cutting the brownies much easier.
Can I double this recipe?
Yes, simply double all ingredients and bake in two 9×13 pans, or use a larger pan and increase the baking time slightly.
Follow me on Pinterest for more Reeses Brownies (Fudgy Chocolate PB Brownies). If you enjoyed this recipe, you might also love my Homemade Reese’s Eggs for another delicious peanut butter chocolate treat!



