Let me tell you, the moment the rich aroma of melted chocolate and roasted peanut butter cups fills your kitchen, it’s pure magic. The scent alone has this way of pulling you closer, making it impossible to resist sneaking a taste—or two. The first time I baked these fudgy Reese’s peanut butter cup brownies, I was instantly hooked. It was one of those rare moments where you pause, take a deep breath, and just smile, knowing you’ve stumbled upon something truly special.

Years ago, when I was knee-high to a grasshopper, my grandma used to make simple brownies that always vanished too fast. But these brownies? They’re the grown-up, dangerously easy version that combine two of my all-time favorites—gooey chocolate and creamy peanut butter cups—in a way that feels like a warm hug. I stumbled upon this recipe on a rainy weekend, trying to recreate a candy bar indulgence without the mess of wrappers and sticky fingers. Honestly, I wish I’d discovered it years ago because my family couldn’t stop sneaking them off the cooling rack (and I can’t really blame them).

Whether you’re looking to brighten up your Pinterest cookie board, impress at a potluck, or just need a sweet treat for your kids (or yourself), these fudgy Reese’s peanut butter cup brownies hit the spot every time. After testing this recipe more times than I can count (in the name of research, of course), they’ve become a staple for family gatherings and gifting. So, buckle up—you’re going to want to bookmark this one for those ultimate indulgence moments!

Why You’ll Love This Recipe

This fudgy Reese’s peanut butter cup brownies recipe isn’t just another brownie. It’s been tested, tweaked, and family-approved for the perfect balance of rich chocolate and peanut buttery goodness. Here’s why you’ll keep coming back for seconds:

• Quick & Easy: Comes together in under 40 minutes, perfect for busy weeknights or last-minute cravings.
• Simple Ingredients: No fancy grocery runs needed; you likely have everything in your pantry and fridge already.
• Perfect for Any Occasion: Great for birthday parties, potlucks, cozy weekend treats, or even just because.
• Crowd-Pleaser: Kids and adults rave about the gooey texture and peanut butter surprises inside.
• Unbelievably Delicious: The fudgy texture combined with pockets of melty Reese’s cups make it next-level comfort food.

What makes this recipe stand out? It’s all about the technique—folding in the peanut butter cups just right to keep them gooey but not melted into the batter, ensuring each bite has that perfect peanut butter hit. Plus, the brownie batter itself is ultra-rich and fudgy without being too dense or cakey. It’s comfort food reimagined—fast, satisfying, and with soul-soothing flavor that makes you want to close your eyes after the first bite. Whether you’re impressing guests or treating yourself, these brownies turn any moment into something memorable.

What Ingredients You Will Need

This recipe uses simple, wholesome ingredients to deliver bold flavor and that satisfyingly fudgy texture without the fuss. Most of these are pantry staples, and if you want, some easy swaps can make it work for you.

• Unsalted butter, 1 cup (227 g), melted (adds richness and that silky texture)
• Granulated sugar, 2 cups (400 g) (for sweetness and structure)
• Large eggs, 4, room temperature (helps with binding and moisture)
• Pure vanilla extract, 2 teaspoons (for that warm, cozy flavor)
• All-purpose flour, 1 cup (125 g) (for structure; use almond flour for gluten-free)
• Cocoa powder, 3/4 cup (75 g), unsweetened (I recommend Ghirardelli for best richness)
• Salt, 1/2 teaspoon (balances the sweetness)
• Baking powder, 1/2 teaspoon (gives a slight lift without cakiness)
• Reese’s Peanut Butter Cups, 1 1/2 cups (about 12 standard cups), halved (the star ingredient—use mini cups for more peanut butter pockets)

Optional additions:

• Chocolate chips, 1/2 cup (90 g), semi-sweet (for extra melty chocolate bits)
• Sea salt flakes, a pinch on top before baking (to contrast and highlight the sweetness)

If you’re avoiding dairy, swap butter for coconut oil and use dairy-free peanut butter cups. For a healthier spin, you can replace half the sugar with coconut sugar or add a touch of espresso powder to deepen the chocolate flavor. But honestly, the classic combo works like a charm every time.

Equipment Needed

To make these fudgy Reese’s peanut butter cup brownies, you’ll want a few trusty kitchen tools. Nothing too fancy, just the essentials that make the process smooth and enjoyable.

• 9×13-inch baking pan: This size is perfect for evenly baked brownies with nice edges. If you only have an 8×8, you can use it but expect thicker brownies and adjust baking time slightly.
• Mixing bowls: A large bowl for the batter and a smaller one for dry ingredients. I usually prefer glass or stainless steel for easy cleanup.
• Whisk and rubber spatula: The whisk helps blend wet ingredients smoothly, while the spatula is perfect for folding in the peanut butter cups without breaking them up too much.
• Measuring cups and spoons: Accuracy matters here—especially for flour and cocoa powder to keep that fudgy texture just right.
• Cooling rack: Let brownies cool properly to set the texture and avoid a messy cut.

Optional but handy:

• Double boiler or microwave-safe bowl: For melting butter gently without burning.
• Sharp knife: To cut clean brownie squares.

Budget-friendly tip: If you don’t have a cooling rack, just use a clean kitchen towel or plate. And if you’re baking often, investing in a good non-stick pan really pays off for easy release and cleanup.

Preparation Method

1. Preheat your oven to 350°F (175°C). Grease your 9×13-inch pan lightly with butter or non-stick spray, then line it with parchment paper leaving an overhang for easy removal later. This step makes cutting brownies a breeze.
2. Melt the butter gently—either in a microwave-safe bowl in 30-second bursts or over a double boiler on the stove. You want it fully melted but not browned. Pour into a large mixing bowl.
3. Add sugar to the melted butter and whisk until combined. The mixture will be glossy and thick, which hints at the fudgy texture to come.
4. Whisk in the eggs one at a time, making sure each is fully incorporated before adding the next. This helps keep the batter smooth and aerated just enough for a tender crumb.
5. Stir in vanilla extract for that classic warm aroma.
6. In a separate bowl, sift together the flour, cocoa powder, salt, and baking powder. Sifting helps avoid lumps and ensures even mixing.
7. Gently fold the dry ingredients into the wet mixture using a rubber spatula. You want to mix until just combined—over-mixing can make brownies tough. The batter should be thick and glossy.
8. Fold in half of the halved Reese’s peanut butter cups carefully to keep chunks intact. If using chocolate chips, add them now too.
9. Pour the batter into your prepared pan and smooth the top evenly with the spatula. Scatter the remaining peanut butter cup halves on top, gently pressing them into the surface but not fully submerged.
10. Bake for 30-35 minutes. Start checking around 30 minutes by inserting a toothpick in the center. It should come out with a few moist crumbs but not wet batter. The brownies will look shiny on top and slightly puffed.
11. Remove from oven and let cool completely on a wire rack before slicing. This resting time helps the brownies set and makes cutting easier without crumbling.

Pro tip: If your peanut butter cups start melting too much during baking, try chilling them for 10 minutes before folding in next time. Also, avoid over-baking; fudgy is the goal, not cakey.

Cooking Tips & Techniques

Getting fudgy brownies with peanut butter cups just right can feel like a balancing act, but here are some tips I’ve picked up along the way:

• Use room temperature eggs: Cold eggs can cause the batter to seize or mix unevenly, making the texture off.
• Don’t overmix your batter: Once the flour is added, fold gently. Overworking activates gluten and makes brownies cakey instead of fudgy.
• Measure cocoa powder carefully: Too much can dry out the batter. I always spoon and level for accuracy.
• Watch the baking time closely: Brownies can go from fudgy to dry quickly. Start testing early and rely on the moist crumb test rather than a clean toothpick.
• Handle peanut butter cups gently: Folding them in with a spatula instead of stirring vigorously keeps chunks intact for melty pockets.
• Let brownies cool fully: Patience here pays off. Cutting warm brownies can cause them to crumble and lose that luscious gooeyness.

One time, I got impatient and cut into these beauties too soon—let’s just say my kitchen looked like a chocolate peanut butter explosion. Lesson learned! Also, multitasking tip: while brownies bake, use that time to clean up or prep your next batch of snacks. Efficiency is key, you know?

Variations & Adaptations

This recipe is super versatile, and I’ve tried several fun twists you might want to try too:

• Peanut Butter Swirl: Before baking, dollop extra peanut butter on top of the batter and swirl gently with a knife for a marbled look and extra flavor punch.
• Gluten-Free Version: Swap all-purpose flour with a 1:1 gluten-free baking blend. Just watch the baking time; it might bake a bit faster.
• Dairy-Free Treat: Use coconut oil instead of butter and dairy-free peanut butter cups. I tried this for a friend with allergies, and no one guessed the difference.
• Salted Caramel Addition: Drizzle salted caramel sauce over the batter before baking or right after cooling for a gooey surprise.
• Spicy Kick: Add a pinch of cayenne pepper or chili powder to the dry ingredients for a subtle spicy chocolate twist.

Personally, I love the peanut butter swirl variation. It adds a pretty visual and gives each bite a creamy peanut butter boost that’s dangerously addictive. Feel free to customize with your favorite mix-ins like chopped nuts, toffee bits, or even mini marshmallows for a s’mores vibe.

Serving & Storage Suggestions

For the best experience, serve these fudgy Reese’s peanut butter cup brownies slightly warm or at room temperature. The peanut butter cups stay soft, and the chocolate is perfectly melty. You can dust a little powdered sugar on top or add a scoop of vanilla ice cream for a dessert that’ll impress.

Pair with a cold glass of milk, a cup of coffee, or even a creamy hot chocolate to round out the indulgence. They’re perfect as an afternoon pick-me-up or a sweet ending to dinner.

To store, keep brownies in an airtight container at room temperature for up to 3 days. If you want to keep them longer, wrap tightly and freeze for up to 3 months. Thaw overnight in the fridge, then bring to room temperature or warm briefly in the microwave.

Reheating is easy—just a quick 10-15 seconds in the microwave revives that gooey texture. Over time, flavors meld and deepen, so leftovers (if any!) taste even better the next day.

Nutritional Information & Benefits

Each fudgy Reese’s peanut butter cup brownie square contains roughly 300 calories, with a balanced mix of fats, sugars, and proteins from the peanut butter cups and eggs. The cocoa powder adds antioxidants, and using real unsalted butter provides a rich texture along with essential fat-soluble vitamins.

While these brownies are definitely an indulgence, they do deliver some nutritional benefits through their key ingredients. Peanut butter brings in heart-healthy fats and protein, making the treat a bit more satisfying. For those watching allergens, the recipe contains dairy, eggs, peanuts, and gluten (unless substituted), so keep that in mind.

From my experience, treats like this are best enjoyed mindfully and shared with loved ones—because, honestly, that’s where the real wellness lives.

Conclusion

If you’re craving something truly special, these fudgy Reese’s peanut butter cup brownies are a must-try. They’re quick, simple, and pack a flavor punch that’s hard to beat. Whether you stick to the classic or try one of the variations, you’re in for a treat that feels like a warm hug from the inside out.

I love this recipe because it takes two favorites, chocolate and peanut butter, and marries them in a way that feels both nostalgic and exciting. I can’t wait to hear how you customize yours—trust me, this one sparks creativity!

Give it a go, share your results, and don’t be shy about leaving a comment or sharing this sweet indulgence with your friends. Happy baking and even happier eating!

FAQs

Can I use natural peanut butter instead of peanut butter cups?

Yes, but the texture and flavor will differ. Peanut butter cups add gooey, melty pockets that natural peanut butter can’t replicate. You could swirl natural peanut butter into the batter for a different but tasty twist.

How do I know when the brownies are done?

Check by inserting a toothpick near the center. It should come out with moist crumbs but no wet batter. The top will look shiny and just set.

Can I make these brownies ahead of time?

Absolutely! They store well in an airtight container for 3 days at room temperature and freeze beautifully for up to 3 months.

What if I don’t have Reese’s peanut butter cups?

You can substitute with chopped peanut butter chips or even chopped peanut butter-filled chocolates, but the flavor and gooey texture might vary slightly.

How can I make these brownies vegan?

Swap butter for coconut oil, use flax eggs (1 tablespoon flaxseed meal + 3 tablespoons water per egg), and choose dairy-free peanut butter cups. Baking time may vary slightly.

Fudgy Reeses Peanut Butter Cup Brownies Easy Recipe for Ultimate Indulgence

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• Author: David
• Total Time: 45-50 minutes
• Yield: 12 servings 1x

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Description

These fudgy Reese’s peanut butter cup brownies combine rich chocolate and creamy peanut butter cups for a gooey, indulgent treat that’s quick and easy to make.

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Ingredients

Scale 1x2x3x

• 1 cup (2 sticks) unsalted butter, melted
• 2 cups granulated sugar
• 4 large eggs, room temperature
• 2 teaspoons pure vanilla extract
• 1 cup all-purpose flour
• 3/4 cup unsweetened cocoa powder
• 1/2 teaspoon salt
• 1/2 teaspoon baking powder
• 1 1/2 cups Reese’s Peanut Butter Cups, halved (about 12 standard cups)
• Optional: 1/2 cup semi-sweet chocolate chips
• Optional: pinch of sea salt flakes for topping

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Instructions

1. Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking pan lightly with butter or non-stick spray, then line it with parchment paper leaving an overhang for easy removal.
2. Melt the butter gently in a microwave-safe bowl or over a double boiler until fully melted but not browned. Pour into a large mixing bowl.
3. Add sugar to the melted butter and whisk until combined and glossy.
4. Whisk in the eggs one at a time, ensuring each is fully incorporated before adding the next.
5. Stir in vanilla extract.
6. In a separate bowl, sift together the flour, cocoa powder, salt, and baking powder.
7. Gently fold the dry ingredients into the wet mixture using a rubber spatula until just combined; do not overmix.
8. Fold in half of the halved Reese’s peanut butter cups carefully to keep chunks intact. If using chocolate chips, add them now.
9. Pour the batter into the prepared pan and smooth the top evenly. Scatter the remaining peanut butter cup halves on top, gently pressing them into the surface but not fully submerged.
10. Bake for 30-35 minutes, checking around 30 minutes by inserting a toothpick in the center. It should come out with a few moist crumbs but no wet batter.
11. Remove from oven and let cool completely on a wire rack before slicing.

Notes

Use room temperature eggs for best texture. Avoid overmixing the batter to keep brownies fudgy. Chill peanut butter cups for 10 minutes before folding in if they tend to melt too much. Let brownies cool completely before cutting to avoid crumbling. Optional toppings include sea salt flakes or a peanut butter swirl before baking.

• Prep Time: 15 minutes
• Cook Time: 30-35 minutes
• Category: Dessert
• Cuisine: American

Nutrition

• Serving Size: 1 brownie (1/12th of
• Calories: 300
• Sugar: 25
• Sodium: 150
• Fat: 18
• Saturated Fat: 7
• Carbohydrates: 35
• Fiber: 2
• Protein: 5

Keywords: brownies, peanut butter cup brownies, fudgy brownies, Reese's brownies, chocolate peanut butter dessert, easy brownies, quick dessert