Chocolate and Peanut Butter Cup Cakes with Peanut Butter Buttercream Frosting


I’m a chocolate and peanut butter addict.

I’m sure I’m not alone.

So on our first leg of our journey to Canada I started day dreaming about the heavenly combination. I even got out my iPhone and started using my “Dragon Dictation” app to brainstorm and record recipe ideas. {perfectly normal} 

The idea to make a chocolate cup cake with peanut butter buttercream frosting was very logical. Then I had the idea to drop a Reese’s mini peanut butter cup right into the center, brilliant. THEN I would take it over the top with some Reese’s Pieces.

Pure Chocolate and Peanut Butter Genius.

This is one decadent dessert, that will kick any sweet tooth craving. The peanut butter buttercream frosting is light, fluffy, and rich all at the same time. It’s in perfect balance with the chocolate cup cake.

I brought these cup cakes to my sister-in-law’s “Hobbit” party after the whole family went to see the new movie.

Don’t judge me, but I have never seen “The Lord of The Rings” before, so watching “The Hobbit” was my first experience with dwarfs and orcs and trolls and such. Not gonna lie… the movie scared the crap out of me. I’m pretty sure I am going to have nightmares about some creepy, balding creature with ginormous eyeballs chasing me and telling me ridiculous riddles for the rest of my life.

Don’t ask me what happened after that part of the movie because I pulled my beanie over my eyes, buried my face in my husband’s arm and started singing songs from Mama Mia in my head.

The cup cakes went over well though.

These cup cakes will definitely take you to chocolate and peanut butter heaven.

No creepy creatures allowed.

Chocolate and Peanut Butter Cup Cakes with Peanut Butter Buttercream Frosting
  • 1 box Chocolate Cake Mix
  • *ingredients to make box mix (eggs, water, oil)
  • 24 Reese's Miniature Peanut Butter Cups, foil and wrappers removed
  • 1 cup butter (16 tablespoons), softened
  • 1 cup creamy peanut butter
  • 2 cups powdered sugar
  • ¼ tsp salt
  • 1 tsp vanilla
  • 2 tbsp heavy cream (or milk)
  • Reese's Pieces
  • chocolate bar to make chocolate shavings (optional)*
  1. Preheat oven to 350 degrees.
  2. Prepare chocolate cake mix according to package directions and fill cup cake liners ⅔ full with batter. Bake for 7 minutes then carefully remove cup cakes from oven and drop the Reese's Miniatures into the center of the cup cakes. Place back in the oven for 12-15 minutes or until toothpick inserted in center comes away clean.
  3. Cool cupcakes completely on a wire rack.
  4. While cup cakes are cooling prepare buttercream frosting by blending butter and peanut butter in a large mixing bowl with an electric mixture until smooth.
  5. Pour in the powdered sugar and salt and mix just until the sugar begins to get moistened (about 45 seconds). Add the vanilla and heavy cream and blend for 30 seconds. Scrape down the sides of the bowl and beat for an additional 4 minutes until the frosting becomes light and fluffy.
  6. Frost the cooled cup cakes using your desired method then top with Reese's Pieces.
  7. *You can optionally add some chocolate shavings by using a vegetable peeler to scrape a bar of chocolate onto the frosting.
  8. Enjoy!


  1. Chocolate and peanut butter lovers unite!

  2. I’m surprised you didn’t like The Hobbit! Great book and great adaptation of the book. (Same with LoTR..) On the other hand, with these cupcakes at the party, I don’t think I would be paying much attention to The Hobbit either, hehe..

    • I bet I would have appreciated the movie much more had I read the book. My husband loved it, and so did the rest of his family. I am just a wuss, and can’t handle scary movies! LOL

  3. OH MY GOSH Shawn!! I would devour these!

  4. Mmm I’m loving all the levels of chocolate-peanut butter goodness going on here! You really can’t go wrong :) And with a whole PB cup in the middle? Perfection!

  5. These look amazing! Might make these for my husband’s birthday in March. Pinning these so I don’t forget! :)

  6. Chocolate and sugar do it for me every time but your cakes look so yummy I don’t think I could pass if they were presented right in front of me. Very nice!

  7. Just looking at your pictures my mouth is watering. I am a real sugar addict and I am going to try your recipe this afternoon.

  8. Oh my goodness…that sounds (and looks) delish!!!

  9. These are my kind of cupcakes! Love all of the chocolate and peanut butter you packed into them!

  10. I could really use one (or two or three) of these today…

  11. Haha, totally lol’d at your Hobbit thing. I’m pretty sure whenever I make the final decision to watch the LOTR trilogy or whatever, I’m going to have night terrors for the rest of my life as well. So disgusting! However, these amazing cupcakes are anything but gross. They look INCREDIBLE!!

  12. Oh wow! These look amazing…nothing is better than chocolate and peanut butter together!

  13. If we were ever stranded on a deserted island together, we would get along just fine–my food arsenal would consist solely of peanut butter and chocolate. Maybe you could even bake a batch to bring along before we get stuck! It might help to placate any invaders, and/or creatures with big bat-like eyes…thanks for sharing!

  14. These are the BEST cupcakes everrrrrrrr. Seriously!

  15. Just made these and they came out great!

  16. These cupcakes look amazingly yummy…we’re getting snow this weekend in the northeast; I won’t mind being snowed in now since I know I’ll be making a batch of these… Thanks for sharing!

  17. I’ve featured these great cupcakes on my blog, hoping that you don’t mind, but if you do, please contact me and I’ll remove it. All the best.

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