Reese’s Brownies with Peanut Butter Buttercream

I have an obsession with chocolate.

I was storming my pantry the other day deciding what to bake up, when some mini Reese’s cups were staring me right in the face, and thats when I knew… these Reese’s cups were about to meet my love for brownies to fulfill that chocolate-peanut butter craving that seems to creep up all the time.

Reeses Brownies with Peanut Butter Buttercream on ...A chocolate peanut butter heaven! Must make these soon! #recipe #dessert

As I was baking these up, it occurred to me that a Peanut Butter Buttercream Frosting is just what these brownies needed. And trust me, this buttercream is needed to make this dessert over-the-moon, ridiculously delicious. The smooth, creaminess of the buttercream compliments the rich moist brownie to make each bite one to remember. The Reese’s BOTH inside and on top of the buttercream add the perfect touch. If you find yourself to be a peanut butter-chocolate lover, then THESE are the PERFECT treat for you.

I must mention that my cute friend Jamielyn over at I Heart Naptime has a similar recipe for Reese’s Peanut Butter Cheesecake Brownies that looks super good, too. Although I did not use her recipe when making these, our recipes are similar and I am sure equally delicious :)

Reeses Brownies with Peanut Butter Buttercream on ...A chocolate peanut butter heaven! Must make these soon! #recipe #dessert

Okay, now go and bake these brownies! Your spouse, children, parents… whoever will thank you for it. Guaranteed.

Reese's Brownies with Peanut Butter Buttercream
The perfect dessert for chocolate peanut-butter lovers!
Recipe type: Dessert
  • 1 box of your favorite brownie mix, prepared according to package directions or you can use your favorite brownie recipe. I love my mom's brownie recipe found HERE
  • 24 Mini Reese's Peanut Butter cups, unwrapped
  • ½ cup butter, softened
  • 3 cups powdered sugar
  • 1 tsp. vanilla
  • 3 Tbsp. milk, more if needed to reach desired consistency
  • ¼ cup peanut butter
  • 7 Mini Reese's Peanut Butter cups, unwrapped and chopped
  1. Preheat oven to 350 degrees F.
  2. Prepare brownies as directed on packaged.
  3. Spray a 9x13 with cooking spray and spread half of the brownie batter on the bottom.
  4. Place align unwrapped Mini Reese's cups 6x4 evenly across pan (6 down by 4 across).
  5. Carefully spread remaining half of brownie batter over the top. I find it easiest to drop by spoonfuls evenly over the top and then spread to connect the spoonfuls evenly.
  6. Bake at 350 degrees F for 20-25 minutes (or how every long your package specifies) or until batter is cooked through and toothpick comes out clean. Don't overcook and make sure to do the toothpick test in the batter and not a Reese's cup :)
  7. Let cool completely.
  8. While brownies are cooling, make Peanut Butter Buttercream Frosting. To make: Beat butter, powdered sugar, vanilla, milk and peanut butter until smooth or creamy. Add more powdered sugar/milk to reach desired consistency.
  9. Spread frosting over cooled brownies and top with chopped Mini Reese's cups.


Reeses Brownies with Peanut Butter Buttercream on ...A chocolate peanut butter heaven! Must make these soon! #recipe #dessert

If you make this recipe, snap a photo and hashtag it #chefintraining and/or #chefintrainingblog. I would love to see how these recipes take shape in your kitchens.

Filed under: brownies, dessert, frosting

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  1. sally @ sallys baking addiction

    TGIF with these brownies. Holy mackerel!!!!!!!!!!! Nikki you've hit the jackpot. Can I have one for breakfast? Peanut butter is healthy.

  2. Kara

    Wowser! These look amazingly yummy! I'm not sure if I should thank you or curse you. ;)

  3. Leslie

    I just found my new guilty pleasure! My hubby would probably do anything (ha) for these bars! I need to surprise him with them soon...he has Boards next week so that would be a perfect time! Thanks for sharing. (You're breaking my "healthy routine"!) :)

  4. Jocelyn @BruCrew Life

    Holy cow!!! I am in serious need of brownies, frosting, and pb cups now!!!! This looks awesome!!

  5. Suzanne

    These looked so incredible that they are cooling on my counter as I write this. Cannot wait to dig in! Thanks so much!

  6. Melissa B

    I love brownies, these look awesome!
    ( pinning to save! )

  7. teresa

    holy cow, these look incredible!!

  8. Sarah (Shh...Fit Happens)

    OMG this is the second time I looked at this recipe and now I have to try it! I was in need of a good PB frosting!

  9. Miriam

    Do these need to be refridgerated?

  10. Sarah

    Stupid question, but do these need to be refrigerated? With the butter and milk in the frosting I wasn't sure. Thanks :-)

  11. T

    Do these need to be refrigerated? Also, would they freeze well?

  12. Leslie

    I just made this recipe and it did not disappoint! Followed it exactly and they came out perfectly. Thank you for sharing!

  13. PBLover

    A friend just brought these in to the office today - OH MY GOSH THEY ARE THE BEST THINGS EVER!!!!! It is sooooooooo good that I didn't make them myself, because I would have eaten the entire pan. Thankfully, I'm just a little bit too embarrassed to ask for seconds (and thirds....). Highly recommended!