The aroma of freshly baked brownies wafting through the kitchen is an experience that takes me back to my childhood. Today, I’m excited to share my recipe for Rich & Fudgy Peanut Butter Cup Brownies. These luscious treats combine the deep, rich flavor of chocolate with the irresistible creaminess of peanut butter, creating a dessert that satisfies both chocolate lovers and peanut butter aficionados alike. What makes them even more special is the playful twist of adorning them with Nutter Butter reindeer cookies, turning a regular dessert into a festive centerpiece. With quick prep time and a guaranteed crowd-pleaser status, these brownies are perfect for your next holiday gathering or cozy night in. Are you ready to indulge in this delightful sweet? Let’s dive in!

Why are these brownies a must-try?
Indulgent flavors: These Rich & Fudgy Peanut Butter Cup Brownies deliver a luxurious blend of rich chocolate and creamy peanut butter that will leave you craving more!
Festive charm: Topping them with whimsical Nutter Butter reindeer cookies adds a fun and festive touch, perfect for holiday gatherings.
Easy to make: Even novice bakers will find the straightforward instructions a breeze, making it a go-to recipe for satisfying sweet tooth cravings.
Versatile options: Substitute with your favorite candies or even add a holiday twist with peppermint extract for a unique flavor experience!
Crowd-pleaser: Serve these brownies at parties or family gatherings, and watch them disappear in no time—everyone loves a decadent dessert!
Rich & Fudgy Peanut Butter Cup Brownies Ingredients
For the Brownies
• Semi-sweet chocolate chips – Provides a rich chocolate flavor; use dark chocolate for a deeper taste.
• Unsalted Butter – Adds moisture and richness; can substitute with margarine or coconut oil for a dairy-free option.
• Eggs – Essential for structure and moisture; ensure they are at room temperature for best integration.
• Vanilla Extract – Adds flavor depth; consider substituting with almond extract for a unique twist.
• Granulated Sugar – Sweetness and moisture; brown sugar can provide a more caramel-like flavor.
• All-purpose Flour – Provides structure; substitute with gluten-free flour for a gluten-free option.
• Dutch-process Cocoa Powder – Enhances chocolate flavor; regular cocoa can be an acceptable substitute.
• Salt – Balances sweetness and enhances flavors.
• Reese’s Peanut Butter Cups (miniature, cut in half) – Key filling for that peanut butter punch; any chocolate-covered peanut butter candy can work.
• Mini Chocolate Chips – Adds extra chocolatey goodness; optionally omit for less sweetness.
For the Topping
• Nutter Butter Cookies – Adds whimsy on top; can replace with any cookie shaped like a reindeer.
• Pretzels – Used for the reindeer antlers; substitute with any crunchy snack stick if desired.
• Candy Eyes – Decorative feature for the reindeer cookies; chocolate chips can work in a pinch.
• Red Round Candies (mini M&M’s) – Serve as the nose; any red candy can be a fun alternative.
Indulge in these Rich & Fudgy Peanut Butter Cup Brownies and let every bite take you back to sweet, cozy memories!
Step‑by‑Step Instructions for Rich & Fudgy Peanut Butter Cup Brownies
Step 1: Preheat and Prepare
Begin by preheating your oven to 325°F (163°C) and greasing an 8×8 baking pan with non-stick spray. For an easy release, line the bottom and sides of the pan with parchment paper. This will prevent the rich and fudgy peanut butter cup brownies from sticking, ensuring a perfect, clean-cut dessert.
Step 2: Melt Chocolate and Butter
In a double boiler, combine the semi-sweet chocolate chips and unsalted butter. Heat them gently over simmering water, stirring continuously until they’re melted and smooth. Once combined, remove from heat and let the mixture cool slightly, allowing the flavors to meld without cooking the eggs in the next steps.
Step 3: Mix Dry Ingredients
In a separate bowl, sift together the all-purpose flour, Dutch-process cocoa powder, and salt. This ensures that the dry ingredients are well combined, enhancing the texture of your brownies. Set this mixture aside as you move forward with the wet ingredients, preparing to unite the chocolatey goodness with a touch of fluffiness.
Step 4: Whip Eggs and Sugar
Using a stand mixer or electric hand mixer, beat the room-temperature eggs, granulated sugar, and vanilla extract together for about 5 minutes. The mixture should become pale yellow and slightly thickened, creating a fluffy base. This is an important step for achieving that signature fudgy texture in your rich and fudgy peanut butter cup brownies.
Step 5: Combine Chocolate Mixture
Gently fold the cooled chocolate and butter mixture into the whipped egg mixture using a rubber spatula. Take your time to incorporate the two mixtures without deflating the air you’ve created. This step is crucial for achieving the dense, fudgy consistency that makes these brownies irresistible.
Step 6: Fold in Dry Ingredients
Carefully fold the sifted flour, cocoa powder, and salt mixture into the wet ingredients. Use a rubber spatula to combine until just blended, ensuring not to overmix, as this can affect the texture. The batter should be rich and slightly thick, ready to embrace the delightful peanut butter flavors to come.
Step 7: Add Peanut Butter Cups and Mini Chips
Gently fold in the halved Reese’s peanut butter cups and mini chocolate chips into the brownie batter. This is where the magic happens, as the peanut butter candy adds its delectable touch. Mix until they are evenly distributed throughout the thick batter—this will ensure you get gooey bites in every square.
Step 8: Bake the Brownies
Pour the decadent batter into your prepared 8×8 pan, spreading it evenly with a spatula. Bake in the preheated oven for 40-45 minutes, checking for doneness with a toothpick; it should come out with a few moist crumbs attached for that fudgy texture. Allow the aroma to fill your kitchen as you anticipate the delightful brownies to come.
Step 9: Cool and Add Toppings
Once baked, remove the pan from the oven and allow the brownies to cool for about 10 minutes. After cooling slightly, top them with additional halved Reese’s peanut butter cups while they’re still warm, allowing them to soften just enough to make a sweet topping. Let the brownies cool completely before slicing into squares.
Step 10: Decorate Nutter Butter Reindeer
While the brownies cool, it’s time to get crafty! Decorate your Nutter Butter cookies with pretzel antlers, candy eyes, and a red-round candy nose to create adorable reindeer. Place these whimsical treats on top of the sliced brownies, adding a festive touch perfect for any holiday gathering.
Step 11: Serve and Admire
Once decorated, serve your rich and fudgy peanut butter cup brownies. Set them on a decorative platter and watch as smiles spread across the faces of your family and friends. Celebrate the moment and enjoy the deliciously decadent treats you’ve created!

Rich & Fudgy Peanut Butter Cup Brownies Variations
Feel free to let your creativity shine with these delightful twists that can enhance your brownies even further!
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Nutty Addition: Swap in chopped walnuts or pecans for a crunchy, nutty texture that perfectly complements the rich chocolate and peanut butter.
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Oreo Surprise: Layer crushed Oreo cookies into the brownie batter for an indulgent cookies-and-cream flavor that will leave your taste buds dancing.
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Holiday Peppermint: Add a teaspoon of peppermint extract for a festive touch, turning these brownies into a minty holiday treat that everyone will love.
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Dairy-Free Delight: Replace unsalted butter with coconut oil and use dairy-free chocolate chips for a tasty, dairy-free version without sacrificing flavor.
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Spicy Kick: Toss in a pinch of cayenne pepper or espresso powder for an unexpected depth and a little spice, enhancing the chocolate flavor remarkably.
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Fruity Twist: Incorporate dried cherries or raspberries into the mix for a delightful tartness that balances the sweetness of the brownies.
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Salted Caramel Drizzle: Drizzle homemade or store-bought salted caramel on top right after baking for a rich layering of flavors that is simply irresistible.
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Stuffed Brownies: Pipe peanut butter or Nutella into the center before baking for a gooey, melty surprise in the middle of each rich brownie square.
Explore these variations and let your imagination run wild—your family and friends will appreciate the extra love you put into your baking! And if you’re looking for a similar dessert, you might enjoy our Gooey Butter Pecan or the fun Santa Hat Brownies for your festive table!
Make Ahead Options
These Rich & Fudgy Peanut Butter Cup Brownies are perfect for meal prep enthusiasts! To save time on busy evenings, you can prepare the brownie batter up to 24 hours in advance. Simply mix the wet and dry ingredients as instructed, then cover the bowl tightly and refrigerate. Additionally, you can also decorate the Nutter Butter cookies in advance; just store them in an airtight container for up to 3 days. When you’re ready to bake, let the batter sit at room temperature for about 30 minutes before pouring it into the pan and following the baking instructions. This way, you’ll have delicious, fudgy brownies ready in no time, just as delightful as when freshly made!
How to Store and Freeze Rich & Fudgy Peanut Butter Cup Brownies
Room Temperature: Store brownies in an airtight container at room temperature for up to 5 days to maintain their fudgy texture.
Fridge: Alternatively, keep them in the fridge for up to 1 week. Just be sure to let them come to room temperature before serving for the best flavor.
Freezer: For longer storage, wrap brownies tightly in plastic wrap or foil and freeze for up to 30 days. Thaw in the fridge before enjoying.
Reheating: If you want to enjoy a warm brownie, simply microwave a slice for about 10-15 seconds, but don’t overdo it to keep them fudgy!
What to Serve with Rich & Fudgy Peanut Butter Cup Brownies
There’s nothing like a delicious dessert to bring friends and family together, and these brownies are the perfect starting point.
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Vanilla Ice Cream: Smooth, creamy vanilla ice cream balances the richness of the brownies, providing a delightful contrast that melts in your mouth.
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Fresh Berries: Sweet strawberries or tart raspberries add a burst of freshness; their natural juices complement the chocolate beautifully and enhance the overall experience.
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Whipped Cream: Light and airy whipped cream is an inviting topping that complements the decadent brownies, adding fluffiness and a touch of elegance to each serving.
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Peanut Butter Sauce: Drizzling warm peanut butter sauce over each slice deepens the peanut flavor while enhancing the fudgy texture, creating a truly indulgent treat.
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Milkshake: A rich chocolate milkshake makes for a nostalgic pairing, providing a thick and creamy complement that will bring back childhood memories.
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Espresso or Coffee: A hot mug of espresso or coffee perfectly contrasts the sweet brownies, heightening the flavors with every sip and bite.
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Chocolate-Covered Pretzels: Salty, crunchy, and chocolatey pretzels add texture and a dash of fun, making every bite of your dessert experience even more exciting.
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Nut Brittle: The sweet and salty crunch of nut brittle enhances the brownie’s fudgy texture, offering a delightful contrast that keeps every bite interesting.
Expert Tips for Rich & Fudgy Peanut Butter Cup Brownies
• Egg Whipping: Ensure eggs are whipped until pale yellow to achieve the desired light and fluffy texture vital for fudgy brownies.
• Avoid Overmixing: Gently fold in the dry ingredients; overmixing can lead to dense brownies instead of the rich fudgy texture you want.
• Quality Ingredients: Use high-quality chocolate for the best flavor and texture; it truly makes a difference in these brownies.
• Underbaking Wisely: For the perfect fudgy consistency, consider slightly underbaking your brownies; they’ll firm up as they cool, achieving that ideal richness.
• Decorative Touch: Don’t hesitate to get creative with toppings; those Nutter Butter cookies not only look adorable but add a delightful flavor twist!

Rich & Fudgy Peanut Butter Cup Brownies Recipe FAQs
What should I look for when selecting chocolate chips for this recipe?
Absolutely! When choosing chocolate chips, look for high-quality semi-sweet or dark chocolate chips that are rich in cocoa content. It’s essential to check for a glossy appearance and no signs of dullness or bloom, which can indicate age or improper storage. Fresh chocolate chips will melt beautifully, enhancing the overall flavor of your brownies.
How should I store my brownies once they are baked?
For optimal freshness, store your brownies in an airtight container at room temperature for up to 5 days. If you plan to keep them longer, place them in the refrigerator for up to 1 week. Just be sure to allow them to come to room temperature before serving to enjoy their perfect fudginess!
Can I freeze leftovers, and what’s the best method?
Yes, you can freeze your Rich & Fudgy Peanut Butter Cup Brownies! To do this, wrap each brownie tightly in plastic wrap or aluminum foil, and then place them in a freezer-safe bag or container. They can be frozen for up to 30 days. When you’re ready to enjoy, simply transfer them to the fridge to thaw overnight or warm them gently in the microwave for about 10-15 seconds.
How can I troubleshoot if my brownies come out too cakey instead of fudgy?
If your brownies turn out cakey, it might be due to overmixing the batter or baking them for too long. To achieve that dense, fudgy texture, gently fold the dry ingredients in until just combined—overmixing can incorporate too much air. Also, be sure to check doneness by inserting a toothpick; it should come out with moist crumbs rather than clean. Aim for a baking time of 40-45 minutes, adjusting your oven based on how baked they appear.
Are there any common allergens in this recipe?
Yes, this recipe contains common allergens including eggs, dairy (from the butter and chocolate), and gluten (from the all-purpose flour). For a gluten-free option, you can substitute the all-purpose flour with a gluten-free flour blend. If you’re concerned about nut allergies, consider replacing the peanut butter cups with a nut-free chocolate alternative, giving you a safe, delicious option. Always check packaging for allergen warnings, especially when it comes to candies and chocolate.

Indulge in Rich & Fudgy Peanut Butter Cup Brownies Delight
Ingredients
Equipment
Method
- Preheat your oven to 325°F (163°C) and grease an 8x8 baking pan with non-stick spray. Line with parchment paper.
- In a double boiler, combine semi-sweet chocolate chips and unsalted butter over simmering water, stirring until melted and smooth.
- In a separate bowl, sift together all-purpose flour, Dutch-process cocoa powder, and salt.
- Using a mixer, beat room-temperature eggs, granulated sugar, and vanilla extract for about 5 minutes until thickened.
- Gently fold the cooled chocolate mixture into the whipped egg mixture.
- Carefully fold in the sifted flour, cocoa powder, and salt mixture.
- Gently fold in halved Reese's peanut butter cups and mini chocolate chips.
- Pour the batter into the prepared pan and bake for 40-45 minutes, checking for doneness.
- Once baked, let the brownies cool for 10 minutes and top with halved Reese's peanut butter cups.
- Decorate Nutter Butter cookies with pretzel antlers, candy eyes, and a red candy nose, then place on brownies.
- Serve and enjoy your rich and fudgy peanut butter cup brownies.

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