If you are ready to indulge in a dessert that is nothing short of spectacular, the Oreo Reese’s Fudge Brownies (Ultimate Recipe) Recipe is your new best friend. Imagine rich, fudgy brownies swirled with chunks of classic Oreos and pockets of creamy Reese’s peanut butter cups, all perfectly balanced for a heavenly bite every time. This recipe is a celebration of chocolate and peanut butter in brownie form, making it an irresistible treat that’s perfect for sharing or savoring solo with a glass of milk. Whether you’re an experienced baker or a kitchen newbie, these brownies will quickly become your go-to dessert for impressing friends and family.

Ingredients You’ll Need
Gathering the right ingredients for these brownies is simple, but each one plays a crucial role to create the perfect texture and flavor explosion. From the melty butter that makes the base rich and moist to the crunchy Oreos and gooey Reese’s that provide delightful surprises throughout, every component is essential for these brownies to shine.
- ¾ cup unsalted butter, melted: Ensures a rich, tender brownie base with a luscious mouthfeel.
- 1½ cups granulated sugar: Adds the ideal sweetness that balances the cocoa’s bitterness.
- 3 large eggs: Give structure and moisture, helping the brownies stay fudgy.
- 1 tsp vanilla extract: Enhances depth of flavor, adding a subtle sweetness and warmth.
- ¾ cup unsweetened cocoa powder: Provides intense chocolate flavor and a deep color.
- ¾ cup all-purpose flour: Delivers the necessary structure without making the brownies cakey.
- ½ tsp salt: Balances sweetness and highlights chocolate notes.
- ½ tsp baking powder: Gives a slight lift, keeping brownies just the right texture.
- 12 Oreo cookies, roughly chopped: Adds a crunchy, chocolatey surprise in every bite.
- 12 mini Reese’s peanut butter cups, halved: Melts slightly within the brownie, offering rich peanut butter pockets.
- ½ cup semi-sweet chocolate chips: Creates gooey chocolate pockets throughout for extra indulgence.
How to Make Oreo Reese’s Fudge Brownies (Ultimate Recipe) Recipe
Step 1: Preheat & Prep
Start your delicious journey by preheating your oven to 350°F (175°C). Next, line a 9×9-inch baking pan with parchment paper. This little step ensures your brownies come out effortlessly and gives them that ideal clean edge, just like those fancy bakery treats you love.
Step 2: Make the Brownie Batter
Whisk together the melted butter and sugar until the mixture becomes glossy and smooth. This shine hints at the fudgy, moist texture awaiting you. Then, add the eggs one by one, whisking thoroughly after each to incorporate air and build the perfect structure. Stir in the vanilla extract for that aromatic warmth everyone loves. Next, sift together the cocoa powder, flour, salt, and baking powder and gently fold into the wet ingredients. Mixing just until combined avoids tough brownies, keeping them soft and sumptuous.
Step 3: Layer the Good Stuff
Here’s where the magic happens. Fold half of the chopped Oreos and chocolate chips into the batter, distributing dark chocolate and crisp cookie bits throughout the fudge. Pour this decadent batter into your prepared pan, spreading it evenly. Then, press the remaining Oreos and halved Reese’s peanut butter cups right into the top. These will melt slightly and create a gorgeous, eye-catching topping bursting with flavor.
Step 4: Bake
Bake for 30 to 35 minutes or until the center is set and a toothpick comes out with moist crumbs but no raw batter. For those craving ultra-fudgy brownies, slightly underbake by a couple of minutes. Once baked, let the brownies cool completely in the pan before slicing—this ensures clean, professional-looking squares every time.
How to Serve Oreo Reese’s Fudge Brownies (Ultimate Recipe) Recipe
Garnishes
Want to go the extra mile and elevate these brownies? Sprinkle a pinch of flaky sea salt just before baking for an irresistible sweet-and-salty harmony. After cooling, a drizzle of melted peanut butter adds richness and a beautiful glossy finish that’s almost too pretty to eat.
Side Dishes
Serve these brownies alongside vanilla ice cream or a scoop of peanut butter gelato for a decadent dessert combo. Fresh raspberries or sliced strawberries also offer a refreshing contrast to the richness and make for a beautiful presentation.
Creative Ways to Present
If you’re hosting a party, cut the brownies into bite-size squares and arrange them on a tiered dessert tray for eye-catching appeal. For an indulgent treat, layer brownie chunks, whipped cream, and crushed Oreos in a glass for a show-stopping parfait.
Make Ahead and Storage
Storing Leftovers
Leftover Oreo Reese’s Fudge Brownies (Ultimate Recipe) Recipe pieces keep wonderfully in an airtight container at room temperature for up to 4 days. Keeping them covered ensures the brownies stay moist and fudgy without drying out.
Freezing
You can freeze these brownies for up to 3 months. Wrap them tightly in plastic wrap, then place in a freezer-safe bag or container. Thaw at room temperature before serving for a deliciously fresh taste.
Reheating
Warm brownies gently in the microwave for 10 to 15 seconds to revive that soft, gooey texture. Be careful not to overheat, as it can cause the chocolate to seize and change texture.
FAQs
Can I substitute the Oreos with another cookie?
Absolutely! While Oreos provide that classic chocolate cream crunch, you can experiment with other cookies like chocolate chip or peanut butter cookies to create your own unique twist on the Oreo Reese’s Fudge Brownies (Ultimate Recipe) Recipe.
Is it possible to use natural cocoa powder instead of unsweetened?
Yes, but natural cocoa powder is more acidic which might react differently with the baking powder. It may slightly alter texture or taste, so for best results stick to unsweetened cocoa powder as the recipe suggests.
Can I make these brownies gluten-free?
To make the Oreo Reese’s Fudge Brownies (Ultimate Recipe) Recipe gluten-free, swap the all-purpose flour for a gluten-free flour blend. Make sure your Oreos and Reese’s are also gluten-free varieties, which some brands offer.
How can I make these brownies extra fudgy?
To achieve ultra-fudgy brownies, slightly underbake them by two minutes and chill in the refrigerator for an hour before slicing. This method keeps the brownies dense and melt-in-your-mouth delicious.
Can I add nuts to this recipe?
Yes! Chopped walnuts or pecans make a delightful addition, adding a pleasant crunch that complements the soft brownie texture and rich chocolate flavor.
Final Thoughts
Once you try the Oreo Reese’s Fudge Brownies (Ultimate Recipe) Recipe, you’ll see why it’s a total game-changer in the world of brownies. The combination of fudgy chocolate, crunchy Oreos, and luscious Reese’s peanut butter cups brings so much joy in every bite. Whether for a special occasion or a reward for yourself after a long day, these brownies are pure happiness on a plate. So grab your mixing bowl and dive into this fantastic recipe—you won’t regret it!
Print
Oreo Reese’s Fudge Brownies (Ultimate Recipe) Recipe
- Prep Time: 15 minutes
- Cook Time: 30-35 minutes
- Total Time: 45-50 minutes
- Yield: 12-16 brownies
- Category: Dessert
- Method: Baking
- Cuisine: American
Description
These Oreo Reese’s Fudge Brownies combine rich, fudgy chocolate brownies with crunchy Oreo cookies and creamy Reese’s peanut butter cups for an indulgent treat. Featuring a moist, chewy texture and a perfect balance of chocolate and peanut butter flavors, these ultimate brownies are perfect for parties, celebrations, or any chocolate lover’s craving.
Ingredients
Brownie Base
- ¾ cup unsalted butter, melted
- 1½ cups granulated sugar
- 3 large eggs
- 1 tsp vanilla extract
- ¾ cup unsweetened cocoa powder
- ¾ cup all-purpose flour
- ½ tsp salt
- ½ tsp baking powder
Mix-Ins
- 12 Oreo cookies, roughly chopped
- 12 mini Reese’s peanut butter cups, halved
- ½ cup semi-sweet chocolate chips
Instructions
- Preheat & Prep: Preheat your oven to 350°F (175°C) and line a 9×9-inch baking pan with parchment paper to prevent sticking and allow easy removal of brownies once baked.
- Make the Brownie Batter: In a mixing bowl, whisk the melted butter and granulated sugar until the mixture is glossy and smooth. Add the eggs one at a time, mixing thoroughly after each addition. Stir in the vanilla extract. Next, sift together the unsweetened cocoa powder, all-purpose flour, salt, and baking powder, then gently fold them into the wet ingredients just until combined, being careful not to overmix.
- Layer the Good Stuff: Fold in half of the roughly chopped Oreo cookies and the semi-sweet chocolate chips into the brownie batter. Pour this mixture evenly into the prepared baking pan. Then, press the remaining chopped Oreos and halved Reese’s peanut butter cups evenly on top of the batter for an irresistible textured topping.
- Bake: Bake the brownies for 30–35 minutes in the preheated oven, or until the center is set but still fudgy. A toothpick inserted into the center should come out with moist crumbs but no wet batter. After baking, allow the brownies to cool completely in the pan for clean, bakery-style squares before slicing.
Notes
- For extra gooey brownies, slightly underbake by about 2 minutes.
- Chilling the brownies for 1 hour before cutting helps achieve perfect, clean edges.
- Sprinkle flaky sea salt on top before baking for a delightful sweet and salty flavor contrast.
- After cooling, drizzle melted peanut butter over the brownies for an added peanut buttery richness.

