4.50 from 40 votes

Reese’s Stuffed Brownies

Reese’s Stuffed Brownies are a decadent and delicious treat that will satisfy even the most serious of chocolate cravings! They are made with a rich and fudgy brownie base, and stuffed with Reese’s Peanut Butter Cups. 

Reese's stuffed brownies on a wire rack.


These stuffed brownies are an easy to make treat that come together in just over a half an hour, making them perfect for an easy dessert or snack for any occasion. Whether you’re looking for something special for the holidays or just want to indulge yourself after dinner, these Reese’s Stuffed Brownies will hit the spot.

Beautiful, mouthwatering and sweet. I need to make more asap! Once you make a batch, you’ll understand why these sweet treats are such a crowd pleaser.

Why You’ll Love These Stuffed Brownie Cups

  • A hidden surprise of a Reese’s Peanut Butter Cup
  • The perfect chocolate and peanut butter combination
  • This recipe only uses pantry staple baking ingredients, nothing crazy, just things you already have on hand
  • A delicious treat ready in just over a half hour
  • Perfect for holidays, school parties, gatherings, and special occasions
Reese's brownie cups on a wire rack.

Ingredients Needed

  • Salted butter
  • Creamy peanut butter
  • Unsweetened baking chocolate
  • Granulated sugar
  • Vanilla extract
  • Eggs
  • All-purpose flour
  • Reese’s Peanut Butter Cups

How to Make Reese’s Stuffed Brownies

  • Step One: Preheat the oven to 350F. Spray a muffin tin with cooking spray.
  • Step Two: In a small saucepan, heat the chocolate, peanut butter and butter over low heat, stirring constantly. Once melted, remove from heat and let cool 5 minutes.
  • Step Three: In a large mixing bowl, add sugar, eggs and vanilla extract. Beat on high speed for 2 to 3 minutes. Pour in chocolate and beat on low speed until combined. Beat in flour on low speed until combined.
  • Step Four: Add a tablespoon of brownie batter to each muffin tin. Place a Reese’s Peanut Butter Cup on top of each. Slightly press down to embed the peanut butter cup in the batter. Add about a teaspoon of brownie batter on top of each and spread to cover. Your peanut butter cup will now be fully encased inside the brownie.
  • Step Five: Bake for 20 minutes. Let cool in the pan before removing onto a cooling rack.
A stack of Reese's stuffed brownies.

Equipment Needed

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What To Serve With Brownies Stuffed with Reese’s

Reese's stuffed brownies cut in half on a plate.

Helpful Tips and Tricks

  • Be careful when biting into these stuffed brownies. The inside chocolate will be melty and can be very hot.
  • Do not over mix your brownie batter or you will have super dense chocolate brownies.
  • Be careful when checking your brownies for doneness. If you use the toothpick method where you stick a toothpick in the center of each brownie- they may not come out clean even if the brownies are finished baking. The Reese’s Cup in the center may have started to melt and that can cause the toothpick to come out dirty, looking like the brownies may need more time in the oven.

Recipe Variations and Substitutions

  • I made the brownie batter from scratch, but if you wanted to save on time, a boxed mix would work too. If choosing a brownie mix, use a good quality one like Ghiradelli or Hershey’s Brownie Mix.  They look like brownie cupcakes, but inside is a hidden delight: a Reese’s Peanut Butter Cup.
  • Want even more peanut butter chocolatey goodness? Once the brownies are out of the oven, let them cool for a few minutes before spreading a peanut butter drizzle over the top. Then, sprinkle on some Reese’s pieces and press them into the peanut butter. Allow the brownies to cool completely before digging into them – trust me, it’ll be worth the wait!
  • You can use full size or mini Reese’s Cups for this recipe. 

Leftover Storage

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    Store any leftover stuffed brownies in an airtight container or zip top bag. Store them on the counter at room temperature for up to a week.

    You don’t want to refrigerate these treats in the fridge because you will end up drying them out and they won’t last as long or they will turn into a hard brick. 

    Can I Freeze This?

    Oh, frozen Reese’s Stuffed Brownies sound delicious! What a great idea. 

    Once these treats have cooled down, you can place the leftover brownies in a freezer safe container or place them in a freezer safe bag. 

    Keep them in the freezer for up to 2-3 months. 

    When you want to have one of these treats again, you could pull them out and let them thaw or you can let them thaw for a few minutes, until you can bite them again. It’s kind of like when you pop a Reese’s Cup in the freezer and enjoy them again partly frozen. It’s a fantastic way to enjoy this treat. 

    A hand holding a Reese's stuffed brownies cut in half.

    What other things can I stuff brownies with?

    The options here are really endless. Pick any of your favorite treats and pop them inside the brownie treats like you did with Reese’s in this recipe. Any of your favorite candy bars broken down, or snack size candy pieces would be great to stuff inside. 

    Try using some of these: 

    • Milky Way Bars
    • Snickers
    • Almond Joy
    • M&M’s 
      Chopped nuts
    • Hershey Kiss
    • KitKat

    What makes for fudgy brownies? 

    Brownies with more of a fudgy consistency have a higher fat to flour ratio. If you want more cake like brownies, you’ll use more flour than fat when compared in a ratio.

    We melted the chocolate and have more fudge-like brownies. 

    More Brownie Recipes

    If you loved these Reese’s Stuffed Brownies, chances are you are going to love some more of our tasty brownie recipes. Here are a few of our other fan favorite recipes:

    You’ll also like Reese’s Coffee Milkshake.

    Follow me on Instagram @simplystacieblog, Facebook at Simply Stacie, TikTok @simplystacierecipes or Pinterest at @simplystacie and let me know how you liked this recipe and my other recipes.

    If you make the recipe, rate it on the recipe card below and tag me on Instagram and use #simplystacie. I like sharing the photos on my Instagram stories!

    4.50 from 40 votes

    Reese’s Stuffed Brownies

    Created by Stacie Vaughan
    Servings 12
    Prep Time 15 minutes
    Cook Time 20 minutes
    Total Time 35 minutes
    Reese’s Peanut Butter Cups are stuffed inside a rich chocolate brownie. Each bite is pure chocolate heaven!

    Ingredients
     
     

    • cup salted butter
    • cup creamy peanut butter
    • 5 oz unsweetened baking chocolate cut into chunks
    • 1 ¾ cup granulated sugar
    • 2 tsp vanilla extract
    • 3 large eggs
    • 1 cup all-purpose flour
    • 12 Reese’s Peanut Butter Cups

    Instructions

    • Preheat oven to 350°F. Spray a muffin tin with cooking spray.
    • In a small saucepan, heat the chocolate, peanut butter and butter over low heat, stirring constantly. Once melted, remove from heat and let cool 5 minutes.
    • In a large mixing bowl, add sugar, eggs and vanilla extract. Beat on high speed for 2 to 3 minutes. Pour in chocolate and beat on low speed until combined. Beat in flour on low speed until combined.
    • Add a tablespoon of brownie batter to each muffin tin. Place a Reese’s Peanut Butter Cup on top of each. Slightly press down to embed the peanut butter cup in the batter. Add about a teaspoon of brownie batter on top of each and spread to cover. Your peanut butter cup will now be fully encased inside the brownie.
    • Bake for 20 minutes. Let cool in the pan before removing onto a cooling rack.

    Nutrition

    Serving: 1g | Calories: 421kcal | Carbohydrates: 52g | Protein: 8g | Fat: 21g | Saturated Fat: 10g | Polyunsaturated Fat: 10g | Cholesterol: 61mg | Sodium: 156mg | Fiber: 3g | Sugar: 38g

    The information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for a professional nutritionist’s advice.

    Course Desserts
    Cuisine American
    Keyword Reese’s Stuffed Brownies

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    4.50 from 40 votes (40 ratings without comment)

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    Recipe Rating




    43 Comments

    1. You don’t need any baking soda or baking powder ?!

    2. Can a box of brownie mix be substituted?

    3. Could you use miniature Reeses PB cups and make these in a mini muffin pan?

    4. Can you make these in mini muffin pans? How long do you think they take to cook

      1. Yes, I’d check them at about 20 minutes to see if they are done.

    5. My two favorite sweet treats in one! I’m going to make these for the holidays, I think.

    6. Loved these! I’m going to have to take most of them and share so I don’t eat them all.

    7. Now this is my kind of brownie! I am a huge fan of Reese! Thanks for sharing at #SmallVictories linkup!

    8. Ok, the instructions say “….add butter and butter……”  Does that mean add peanut butter and butter?  Or am I missing out on something somewhere.?

    9. I’m not even a fan of Reese’s Peanut Butter cups but I want one of these brownies. 🙂

    10. this is the type of treat I’d want to make and hide so I did not have to share. That’s okay right?

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