Chocolate Peanut Butter Brownies

These Chocolate Peanut Butter Brownies are rich and fudgy and filled with peanut butter morsels. I topped them with a fluffy peanut butter frosting and loads of Reese’s peanut butter cups. The ultimate brownie!

Fudgy Chocolate Brownies with Reese's PB morsels, fluffy Peanut Butter Frosting and chopped Reese's PB Cups!

Today I’ve joined up with some of my friends to share some Reese’s and Hershey’s holiday treats. At the end of today’s post, check out some of these delicious recipes for your holiday baking!


Christmas baking with Hershey Kisses and Reese's PB Cups!


But first, let’s talk chocolate and peanut butter. It’s a classic pairing. I don’t know about you, but when there is a cookie tray for the holiday set out on a table, it seems the chocolate peanut butter desserts ALWAYS go first.


Or is it my imagination? Am I the only one wishing people would snatch those fruitcake slices and leave more brownies for me?

Some other classics?

National Lampoon’s Christmas Vacation.  Miracle on 34th Street (the original of course). White Christmas. A Christmas Story.

And of course, Yogi Bear’s First Christmas.

Yes, it’s by far my favorite Christmas cartoon! Have you seen it? I wish it would be shown every day during the holidays!

What are some of YOUR favorite holiday movies?

Love Actually, ELF, and Home Alone are always some of the most viewed in our house this time of year!

Fudgy Chocolate Brownies with Reese's PB morsels, fluffy Peanut Butter Frosting and chopped Reese's PB Cups!


Let’s talk about those cookie trays? If you’re looking for a delicious dessert that will be the talk of the cookie exchange, trust me when I tell you to make these brownies!

The chocolate, fudgy brownies on their own are delicious. I added some Reese’s peanut butter morsels for that extra crunch in the brownies (tell me YOU love chocolate chips or PB morsels in your brownies too???).

I then topped these brownies with a light fluffy peanut butter frosting. If that wasn’t enough for you, the extra Reese’s peanut butter cups on top are sure satisfy that holiday sweet tooth!

Fudgy Chocolate Brownies with Reese's PB morsels, fluffy Peanut Butter Frosting and chopped Reese's PB Cups!

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Chocolate Peanut Butter Brownies

Yield: 16 brownies

Prep Time:15 minutes

Cook Time:45 minutes

Rich, fudgy Brownies filled with peanut butter morsels and topped with a fluffy peanut butter frosting. Loads of chopped Reese's peanut butter cups make this the ultimate, classic holiday dessert!


For the Brownies:

  • 6 (1-ounce) squares unsweetened chocolate
  • 1 cup unsalted butter
  • 2 cup granulated sugar
  • 3 large eggs
  • 1 1/3 cup all-purpose flour
  • 10oz peanut butter morsels

For the Frosting:

  • 1/2 cup unsalted butter
  • 1/2 cup creamy peanut butter
  • 2 cup powdered sugar
  • 2 Tbsp skim milk
  • 24 Reese's peanut butter cups miniatures, chopped


  1. For the brownies, preheat oven to 325 degrees F. Line an 8inch square baking dish with parchment paper. Set aside.
  2. In a large microwave safe bowl, combine unsweetened chocolate with butter. Melt on high heat for 30 second intervals, stirring after each addition (about 90 seconds total).
  3. Add sugar and stir until combined. Add eggs, one at a time until fully incorporated. Mix in flour completely. Fold in the peanut butter morsels.
  4. Pour into prepared baking dish and bake for about 45 minutes. Remove from oven and cool completely before frosting. Brownies will be soft and fudgy! Refrigerate brownies before frosting to help them firm up!
  5. For the frosting, beat butter, peanut butter, powdered sugar and milk for 5 minutes using an electic mixer with whisk attachment on medium high. Spread over cooled brownies. Top with chopped Reese's peanut butter cups. Cut into bars and enjoy! Store in an airtight container for up to 3 days.

MAKING THIS RECIPE? Share it with me on Instagram using the hashtag #ShugarySweets so I can see what you're cooking up in the kitchen!

Looking for more Reese’s desserts?

Fluffernutter Krispie Treats

Fluffernutter Rice Krispie Treats: peanut butter and marshmallow for another classic treat!

Peanut Butter Cookie Bars

Peanut Butter Cookie Bars: topped with a peanut butter ganache and Reese’s cups and pieces!!

**There may be affiliate links in this post! By clicking on them, or purchasing recommended items I may receive a small compensation. However, I only recommend products I love! Thank you for supporting Shugary Sweets! See my disclosure policy for more info**

44 comments on “Chocolate Peanut Butter Brownies”

  1. Possibly the most awesome idea ever to have a party with Kisses and Reese’s – brilliant! Love these brownies Aimee!

  2. peanut butter and chocolate is the best combination in desserts, in my opinion! these brownies look SO good and I love how thick and mile-high they are!

  3. Rahwa

    I’m going to make these for my cousin’s birthday next week, she loves brownies but I think she’ll like these even more!

    Regarding the brownie recipe, does it call for 6oz of chocolate? I just want to make sure I’m not reading it wrong.


  4. I’m a big fan of anything peanut butter + chocolate!! These look so YUMMY!

  5. Kathy

    Does anyone actually comment AFTER making these recipes? I also was excited to try them as they look AhhhMAZING! However, I was really disappointed after baking them. I put them in the 325 oven for 45 minutes and when I took them out, they were still almost liquid in the middle. I ended up baking them an extra 30+ minutes just trying to get the middle part to bake. Fortunately it didn’t burn with the parchment in the bottom but not sure what I did wrong as I followed the instructions exactly with the exception that I may have had a tiny bit more of chocolate than it called for.

    • Hmmm, I’m sorry they didn’t turn out for you. I’ve used this brownie base in many many recipes with much success. It’s definitely a more fudgy brownie vs cakey. Adding more melted chocolate could throw off the texture, but it definitely should not have needed another 30 minutes to bake!

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