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Sandwiching a Reese’s peanut butter cup between a fudgy, chewy brownie may be one of the world’s most decadent desserts ever created to elevate a boxed brownie mix. Reese’s cup brownies are the perfect excuse to buy Reese’s peanut butter cups or to use up leftover Halloween candy.

reese's cup brownies are sliced into 16 squares on a piece of parchment paper with one brownie flipped to display the melted center
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Reese’s Brownies: Peanut Butter and Chocolate Heaven

Can you name a better combo than peanut butter and chocolate? The fact that these peanut butter brownies exist prove that this duo is simply delicious and perfect. This will satisfy all your peanut butter and chocolate cravings and not to mention, help you out a bit when you’re sifting through all that Halloween candy and wondering what else you can do with all those Reese’s peanut butter cups! I mean, it’s a ‘let me help you’ situation here. It’s also a great surprise to those expecting a regular ole brownie and get a sweet surprise!

These totally irresistible Reese’s brownies only take one bowl, your favorite brownie mix, and Reese’s peanut butter cups! Now, go find yourself some Reese’s peanut butter cups and get baking! Serve these with an iced shaken espresso as an afternoon pick-me-up.

three reese's cup brownies are stacked on top of one another with a gooey peanut butter center displayed

Peanut Butter Brownie Variations

  • You can choose to make the brownie batter from scratch, but honestly, brownie mixes these days are so good that you wouldn’t miss out by grabbing a box. Plus, there are boxed brownie hacks that allow you to doctor up the brownies and make them even more decadent and rich.
  • Add even more peanut butter flavor in every bite by sprinkling peanut butter chips into the batter before baking!
  • There are so many varieties of Reese’s brownies now. I particularly love the dark chocolate peanut butter ones. Also, around different holidays, they have different shaped ones. For example, around Halloween they have the pumpkin-shaped Reese’s peanut butter cups. You can use whichever in this Reese’s brownie recipe!

Storage Instructions

These peanut butter brownies will last up to 4 days at room temperature if covered and wrapped tightly!

Pro tip: zap them in the microwave for 10-15 seconds to have a warm, gooey, center.

4.67 from 3 votes

Reese’s Cup Brownies

Sandwiching a Reese's peanut butter cup between a fudgy, chewy brownie may be one of the world's most decadent desserts ever created to elevate a boxed brownie mix.
Prep Time: 10 minutes
Cook Time: 40 minutes
Total Time: 50 minutes
Servings: 16 squares

Ingredients 

  • 18 ounce (510 g) box of your favorite brownie mix
  • 16 Reese's peanut butter cups

Instructions 

  • Preheat oven to 350 °F (177 °C) and grease a 9×9 baking pan with cooking spray and line with parchment paper. Set aside.
  • Mix together brownie mix with ingredients according to the box to form the brownie batter.
    18 ounce (510 g) box of your favorite brownie mix
    oil and eggs added to a clear bowl with brownie mix
  • Pour half the batter into the prepared baking pan and spread into an even layer with a spatula.
    a grey silicone spatula is spreading brownie batter into a parchment paper lined square baking pan
  • Place Reese's cups on top of the brownie batter. There should be 4 in each row.
    16 Reese's peanut butter cups
    16 reese's cups are added on top of the brownie batter in the square baking pan
  • Pour the rest of the brownie batter on top of the Reese's cups, covering them. Spread the batter gently with a spatula to make sure everything is covered.
    the remaining brownie batter is being poured on top of the reese's cups
  • Bake for 35-40 minutes then remove from oven and let brownies cool in pan until room temperature.
  • Using a paring knife, run it around the edge of the pan to loosen the brownies. Slice into squares, you should get 16 so each brownie square has a Reese's peanut butter cup in the center.
  • Store in airtight container for up to 4 days at room temperature.
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Nutrition

Serving: 1brownie (76 grams), Calories: 228kcal, Carbohydrates: 34g, Protein: 3g, Fat: 9g, Saturated Fat: 3g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 4g, Cholesterol: 1mg, Sodium: 154mg, Potassium: 58mg, Fiber: 1g, Sugar: 24g

This website provides approximate nutrition information for convenience and as a courtesy only. Nutrition information can vary for a variety of reasons. For the most precise nutritional data use your preferred nutrition calculator based on the actual ingredients you used in the recipe.

The default measuring system for this website is US Customary. Unit conversions are provided for convenience and as a courtesy only. While we strive to provide accurate unit conversions, please be aware that there may be some discrepancies.

Photographs by Meg McKeehan Photography

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74 Comments

  1. Linda | The Urban Mrs says:

    Oh hubs definitely needs to stay away from this. He’s so addicted to Reeses. Looks so yummylicious and I just can’t stop looking at those lovely pictures. BTW, it’s so true that Halloween is different these days. We had no kids knocking on the door and we live in a secluded area. Thankfully….I didn’t prepare candy, completely forgot, lol.

  2. Chung-Ah | Damn Delicious says:

    Awww I’m sorry not many kids came by but it looks like you put great use to the leftover candy! These brownies are absolute sinful!

  3. Megan @ Country Cleaver says:

    I had ONE knock on Halloween. ONE. Thank goodness I was that horrible person who opted to just not buy candy at all so I didn’t have loads of it around – but now, I don’t have loads of candy around so I can’t make THESE!! AHHH Catch 22!!! Noooo!

    Need. these. Yesterday.

  4. Laurie {Simply Scratch} says:

    I think I just gained 5 lbs just looking at these brownies… totally worth it by the way! :P

  5. Laura (Tutti Dolci) says:

    These brownies look so, so delicious!!

  6. Aimee @ ShugarySweets says:

    Very Very brilliant, indeed. If only I didn’t eat all the Reese’s plain…

  7. Lynna says:

    Uhh… HELLO BROWNIE. I shall devour you now.

    I loved Halloween as a kid! I would be so excited to pass out candy when I get older. I hope kids will go out more.

  8. Georgia @ The Comfort of Cooking says:

    What a great way to use up leftover Halloween candy! And, er… stretch it a little further ;)

  9. Nicole @ The Marvelous Misadventures of a Foodie says:

    YUMMM! I love Reese’s in brownies!! These will surely brighten anyone’s Monday :)

    It’s funny, when I was handing out candy I was torn between handing them two giant handfuls or just a few pieces – part of me wanted to get rid of it since there weren’t many kinds out and about, and the other part of me was worried that we would run out…strange, I know!

  10. Katie @ Blonde Ambition says:

    I agree with someone above who said they don’t know if they could save enough Reese’s to cook these with…. they are my fave!! I’ve gotta try these though, they sound so decadent and delicious!