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Get ready for an absolute game-changer of a recipe. I’m talking about the one, the only, the ridiculously delicious Chocolate Peanut Butter Brownies.

chocolate peanut butter brownies on a white serving plate

You heard me right. Two of the best flavors in the universe come together here in a decadent dance of dessert delight. These Chocolate Peanut Butter Brownies are absolutely going to make your day!

Imagine: a rich, fudgy chocolate brownie studded with full-sized Reese’s Cups and then slathered with a creamy, dreamy peanut butter frosting. This, my friends, is dessert heaven!

​When my toddler discovered I was making these, I couldn’t keep her off the counter! She likes to climb these days. You’re adorable Lily, but please stay off the counter. Ha!

Seriously though, who wouldn’t climb on the counter for these homemade brownies? I’m lucky if I get that wonderful chocolate brownie batter into the oven before someone eats the batter!

The best part of this recipe has to be the Reese’s peanut butter cups hidden inside. They make for an amazing, smooth peanut butter layer that makes my mouth water just thinking about it!

I think these might just be the most delicious brownies I’ve made yet. That’s really saying something because I’ve tried so many over the years. You will not regret making these yummy treats!

But don’t just take my word for it. Get out your mixing bowl, heat up that oven, and prepare to bake your way to sweet, sweet happiness with our Chocolate Peanut Butter Brownies.

Some of our other favorite peanut butter recipes we have on our site include: No Bake Peanut Butter Pie, Peanut Butter Oatmeal Cookies, and Slow Cooker Peanut Clusters.

chocolate peanut butter brownies on a white serving plate

WHY THIS RECIPE WORKS:

  1. Surprise Inside: The full-sized Reese’s Cups tucked inside the brownies add a delightful surprise with every bite.
  2. Simple to Make: With the help of a brownie mix and a few extra ingredients, these brownies are a snap to make—no need to be an expert baker to nail this recipe.
  3. Easily Customizable: Want to add a little something extra? No problem! This recipe easily adapts to your favorite toppings or mix-ins. (I’m a fan of adding dark chocolate myself.)

INGREDIENTS NEEDED (SCROLL TO THE BOTTOM OF THIS POST FOR THE FULL RECIPE CARD):

  • Brownie mix, plus ingredients on the back of the box
  • Full-sized Reese’s Cups
  • Creamy peanut butter
  • Unsalted butter
  • Powdered sugar
  • Heavy cream
  • Vanilla extract
ingredients needed to make chocolate peanut butter brownies

HOW TO MAKE CHOCOLATE PEANUT BUTTER BROWNIES:

  1. Preheat the oven to 350°F. Line a 9×13 baking dish with parchment paper, set aside.
  2. In a large bowl, mix the brownie mix with the ingredients listed on the back of the box. Spread about ⅔ of the batter into the prepared baking dish.
  3. Place 15 Reese cups on top of the batter, and press them in slightly.
  4. Gently spread the remaining batter on top of the layer of peanut butter cups, ensuring they are completely covered with batter.
  5. Bake for 25-30 minutes until a toothpick inserted into the center of the brownie comes out mostly clean; a few moist crumbs are okay, but any wet batter and it needs to bake longer.
  6. Place on a wire rack to cool completely.
how to make the brownies for chocolate peanut butter brownies in a collage of images
  1. Once the brownies have cooled, make the frosting by placing the peanut butter and butter into a large bowl with an electric hand mixer or stand mixer with the paddle attachment. Cream until smooth.
  2. Add the powdered sugar in a little at a time until fully mixed in; scrape the sides as needed. The mixture will be thick.
  3. Add the heavy cream and vanilla, and stir it until combined. Place the mixer on medium-high speed and whip for 2 minutes until light and fluffy.
  4. Using the parchment paper to help, lift the brownies out of the baking dish. 
  5. Spread the frosting evenly over the top of the brownies. Serve immediately or add more fun toppings if desired.
how to make the frosting for chocolate peanut butter brownies in a collage of images

FREQUENTLY ASKED QUESTIONS ABOUT THIS RECIPE:

CAN I USE HOMEMADE BROWNIE BATTER?

Absolutely! Feel free to substitute the brownie mix with your favorite homemade brownie recipe.

Just make sure it’s enough to fill a 9×13 baking dish.

DO I HAVE TO ADD THE TOPPINGS?

No, the toppings are totally optional!

These chewy brownies are delicious on their own, but if you want to amp up the wow factor, go for it!

WHAT OTHER FROSTING CAN I USE?

If you’re not a fan of peanut butter, try a cream cheese frosting or even a simple chocolate ganache. You can’t go wrong with even more chocolate flavor!

one chocolate peanut butter brownie being held in air with a spatula

CAN I USE CRUCHY PEANUT BUTTER?

Sure thing! Crunchy peanut butter will give the frosting a little extra texture and a nice nutty bite.

ANY ADDITIONS?

ALWAYS. Here are some yummy ideas:

  • Mix in some chocolate chips for extra chocolatey goodness, any flavor works.
  • Add in some peanut butter chips to intensify the peanut butter flavor.
  • Sprinkle on some crushed pretzels for a little bit of salty crunch.
  • Add a layer of caramel for a gooey twist.
  • Swirl in some marshmallow fluff for a sweet surprise.
  • Mix in some chopped nuts for a hearty bite.
  • Drizzle on some melted chocolate for an extra layer of indulgence.
  • Top with a dusting of natural cocoa powder.
  • Sprinkle on some sea salt for a salty-sweet contrast.
  • Top with a scoop of vanilla ice cream for the ultimate dessert.

ANY SUBSTITUTIONS?

Yes, here are some suggestions:

  • Swap the Reese’s Cups with something else, like chocolate bars, for a different flavor.
  • Use a dairy-free margarine in place of the butter for a dairy-free version.
  • Substitute the heavy cream with coconut cream for a dairy-free option.
  • Use a gluten-free brownie mix for a gluten-free treat.
  • Swap the powdered sugar with a sugar substitute for a lower-sugar option.
  • Use almond butter, cashew butter, or your own favorite nut butter in place of the peanut butter for a nutty twist. 
a hand holding a chocolate peanut butter brownie in air with a bite taken out

HOW TO STORE:

Refrigerator: Store leftovers in an airtight container in the fridge for up to 4 days.

This can also help the brownies become even more fudgy and delicious!

Freezer: These brownies freeze beautifully!

Just wrap them well in plastic wrap and store in an airtight container. They’ll keep in the freezer for up to 3 months.

DANA’S TIPS AND TRICKS:

  • Use good quality chocolate and peanut butter for the best flavor.
  • Line your baking pan with parchment paper for easy removal and clean-up.
  • Be sure to fully cover the Reese’s Cups with the brownie batter to ensure they melt into the brownies.
  • Let the brownies cool completely before frosting to avoid a melty mess.
  • Have fun with it! This recipe is all about indulgence, so don’t be afraid to add your favorite toppings.
a bite taken out of a chocolate peanut butter brownie on a white plate

So there you have it! A truly scrumptious dessert that’s as fun to make as it is to eat. I promise you, these Chocolate Peanut Butter Brownies are going to be a hit.

And remember, there’s no such thing as too much peanut butter or chocolate, so go ahead, indulge a little! You deserve it.

If you’ve tried this CHOCOLATE PEANUT BUTTER BROWNIES, let me know how it turned out in the comments! You can follow me over on PINTEREST, INSTAGRAM OR FACEBOOK to find some more of our mouthwatering recipes! 

This Silly Girls Kitchen Logo
5 from 1 vote

Reese’s Stuffed Chocolate Peanut Butter Brownies

Author Dana at ThisSillyGirlsKitchen.com
Prep: 10 minutes
Cook: 30 minutes
Get ready for an absolute game-changer of a recipe. I’m talking about the one, the only, the ridiculously delicious Chocolate Peanut Butter Brownies.
Servings 15 servings

Ingredients
  

For the frosting:

Instructions

  • Preheat the oven to 350°F. Line a 9×13 baking dish with parchment paper, set aside.
  • In a large bowl, mix the brownie mix with the ingredients listed on the back of the box. Spread about ⅔ of the batter into the prepared baking dish.
    1 box brownie mix + ingredients needed on the package
  • Place 15 Reese cups on top of the batter, and press them in slightly.
    15 full-sized Reese’s Cups
  • Gently spread the remaining batter on top of the layer of peanut butter cups, ensuring they are completely covered with batter.
  • Bake for 25-30 minutes until a toothpick inserted into the center of the brownie comes out mostly clean; a few moist crumbs are okay, but any wet batter and it needs to bake longer.
  • Place on a wire rack to cool completely.
  • Once the brownies have cooled, make the frosting by placing the peanut butter and butter into a large bowl with an electric hand mixer or stand mixer with the paddle attachment. Cream until smooth.
    3/4 cup creamy peanut butter, 1/2 cup unsalted butter
  • Add the powdered sugar in a little at a time until fully mixed in; scrape the sides as needed. The mixture will be thick.
    2 & 1/4 cups powdered sugar
  • Add the heavy cream and vanilla, and stir it until combined. Place the mixer on medium-high speed and whip for 2 minutes until light and fluffy.
    4 tablespoons heavy cream, 1 & 1/2 teaspoons vanilla extract
  • Using the parchment paper to help, lift the brownies out of the baking dish.
  • Spread the frosting evenly over the top of the brownies. Serve immediately or add more fun toppings if desired.

Notes

  • Use good quality chocolate and peanut butter for the best flavor.
  • Line your baking pan with parchment paper for easy removal and clean-up.
  • Be sure to fully cover the Reese’s Cups with the brownie batter to ensure they melt into the brownies.
  • Let the brownies cool completely before frosting to avoid a melty mess.
  • Have fun with it! This recipe is all about indulgence, so don’t be afraid to add your favorite toppings.

Nutrition

Calories: 304kcal | Carbohydrates: 30g | Protein: 5g | Fat: 19g | Saturated Fat: 8g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 7g | Trans Fat: 0.2g | Cholesterol: 22mg | Sodium: 119mg | Potassium: 138mg | Fiber: 1g | Sugar: 27g | Vitamin A: 257IU | Vitamin C: 0.1mg | Calcium: 24mg | Iron: 0.4mg
Nutrition Disclaimer

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5 from 1 vote (1 rating without comment)

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