Peanut Butter Cup S’mores

Every girl needs to indulge in some chocolate every now and then. Whether it’s that time of the month, you’re feeling a little under the weather, or your boyfriend just moved three hours away (cough cough), this recipe is sure to *poof* make all of your problems go away. (So maybe that isn’t true, but chocolate seriously does make everything better!)
That’s why today I bring you this mouthwatering recipe for Peanut Butter Cup S’mores. Chocolate, peanut butter, graham cracker and marshmallow fluff come together to form a melt-in-your-mouth combination. 
You will need:
  • 1/2 cup packed light brown sugar
  • 1/4 cup sugar
  • 1/2 cup butter
  • 1 egg
  • 1 teaspoon vanilla
  • 1 1/4 cups flour
  • 1 teaspoon baking powder
  • 1/4 teaspoon salt
  • 1 cup graham cracker crumbs
  • 16 regular size peanut butter cups (not the small ones)
  • 1 1/2 cups marshmallow fluff

1. Preheat the oven to 350 degrees and line an 8×8 baking dish with wax paper. Coat lightly with cooking spray. 
2. In a large bowl, use a mixer to beat the butter, brown sugar and sugar together until fluffy. Beat in the egg and vanilla. With the mixer on a low speed, stir in the flour, baking powder, salt and graham cracker crumbs until combined. 
3. Spread 2/3 of the dough on the bottom of the prepared baking dish, using your fingers to spread the dough out and create an even layer. Lightly press the peanut butter cups into the dough and spread the marshmallow fluff on top (marshmallow fluff can be hard to measure, so just make sure you have enough to cover the peanut butter cups completely). 
4. Flatten remaining dough pieces with your fingers and place on top of the marshmallow fluff. It’s okay to have “cracks” between the pieces of dough.
5. Bake for 25 minutes or until the edges begin to brown. Allow to cool for 30 minutes and then dig in! (It’s best when the marshmallow is still warm and gooey). Enjoy!

Leave a Comment


  1. This is definitely my to try recipes!


  2. This look delicious! I am definitely going to look into making a batch of these 🙂


  3. Mmmm these look to die for!! I will definitely have to try them out 🙂 You always have such great recipes on your blog Caitlin 🙂


  4. Those look so good. If I wasn't allergic to peanuts I would definitely give those a go

    I Pink i Love You

  5. The peanut butter cup s'mores look delicious! I am going to have to try this recipe out!


  6. these look heavenly! Don't worry, you and your bf will get through it! I did Virginia to NYC for a year and we were just fine 🙂

  7. yuuuummmmmm!

  8. Yum! Those look so good! If a dessert could make your BF moving 3 hours away any better, I think this one could do the trick. And Prince George will always be there to keep you company 🙂

  9. yummy

  10. Cait, these look AMAZING! I'm definitely craving some chocolate now.

    Chelsea & The City

  11. These look so yummy! And I love the blue dish!!

  12. I am definitely trying these this weekend!

  13. These look so, so yummy!

  14. Ah, these look divine! I'm definitely going to try to whip up a batch ASAP. 🙂

  15. I mean, what?! These look insane and combine some of my favorite things. Definitely trying these soon!

  16. Definitely making those for tailgating this weekend. And don't worry about doing distance…my boyfriend and I did distance on and off for three years (Ohio and Georgia) and are still going strong. 🙂

  17. Yum. I'm pinning this.

  18. Oh wow! Just found these the look delicious!