Reese’s Peanut Butter S’mores Cookies

by Erin

Who else has added a peanut butter cup to their campfire s’mores? This cookie is for you!

Reese's Peanut Butter S'mores Cookies

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S’mores cookies swept the blogosphere several months ago now. I think they were in their prime last summer. But somehow I never managed to get around to making them myself despite fantasizing about them every time someone posted the recipe. Maybe it was too daunting of a task to figure out which version to try?

S'mores Cookies with Peanut Butter Cups

The current season of late winter/early spring may not seem like a s’mores kind of time, but I assure you anytime is the right time for a s’more especially when there is peanut butter involved. Yes, peanut butter. I tend to like using Reese’s cups in my campfire-side treat, which should come as no surprise – have you seen my peanut butter obsession Pinterest board?

Peanut Butter Cup S'mores Cookies

A couple weeks ago while wandering the aisles of the grocery store in search of any new goodies on the shelves, I stumbled across a Reese’s candy bar. It’s milk chocolate with peanut butter inside! After nearly buying the entire display, I was a little disappointed to discover that the peanut butter is divided between segments instead of filling the entire bar (I was imagining a filling spread like it is inside of a pop-tart). But it’s is still yummy, just doesn’t have the higher peanut butter to chocolate ratio that I tend to enjoy with Reese’s cups.

Peanut Butter S'mores Cookies

Anywho, with my stock-pile of Reese’s candy bars and s’mores cookies continuing to haunt my dreams, I decided to smash the two together using my favorite peanut butter cookie as the base to increase that ratio I was talking about. Add a little graham cracker and some marshmallows and you have a peanut butter s’mores cookie! 

Of course these can also be made with regular peanut butter cups – as made evident by my newly updated photos. 

Post updated 8/10/20, photo above is the original.

One year ago: King Pancakes

Reese's Peanut Butter S'mores Cookies


Yield: Approximately 4 dozen
Nutrition facts: 200 calories 20 grams fat



  • 1 cup creamy peanut butter
  • 1/2 stick unsalted butter, room temperature
  • 1/4 cup honey


  • 3 cups all-purpose flour
  • 1 cup graham cracker crumbs (about 7-8 whole crackers)
  • 1 tsp baking powder
  • 1/2 tsp baking soda
  • 1/2 tsp salt
  • 3/4 cup unsalted butter, room temperature
  • 1/4 cup shortening
  • 1 cup sugar
  • 1 cup dark brown sugar
  • 2 eggs, room temperature
  • 1 tsp vanilla extract
  • 1 cup semi-sweet chocolate chips
  • 2 large Reese's candy bars (or 16 regular peanut butter cups), chopped
  • 1 cup mini marshmallows, approximately


  1. Preheat oven to 350 degrees. Line two baking sheets with parchment paper.
  2. Blend the peanut butter mixture first in a medium bowl, then set aside.
  3. In another medium bowl, whisk together the flour, graham cracker crumbs, baking powder, baking soda, and salt, set aside.
  4. In a stand mixer or large bowl, cream the butter, shortening, and both sugars until light and fluffy. Add the eggs, beating well after each one, then add the vanilla and the peanut butter mixture. Add the flour mixture by the cupful and beat at low speed until fully mixed. At this point, using a spatula stir in the chocolate chips and chopped Reese's.
  5. Drop heaping tablespoons of the dough onto the prepared baking sheets, spacing them about 2 inches apart (I used a medium cookie scoop). Bake for 9 minutes, then remove from the oven and quickly, but gently push a few marshmallows into the top of each cookie. Return the cookies to the oven and bake for an additional 2-3 minutes, or until the edges are set. Cool the cookies on the baking sheets for about 5 minutes, then transfer them to a wire rack to cool completely.
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Source: Adapted from Lunch Lady Peanut Butter Cookies and Tracey’s Culinary Adventures.

Did you make this recipe? I want to see!
Tag @THESPIFFYCOOKIE on Instagram and hashtag it #THESPIFFYCOOKIE

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Katrina @ In Katrina's Kitchen March 13, 2012 - 10:53 am

I just had to pick myself up off of the floor.

spiffycookie March 13, 2012 - 10:56 am

Ah hahaha!

Stephanie @ Eat. Drink. Love. March 12, 2012 - 11:00 pm

Peanut butter and s’mores! Oh, these look glorious!

Kristina March 11, 2012 - 10:12 am

OK… I need one of these cookies.. like right now! YUM! This is such an awesome combo, I love your idea!!

Anna @ hiddenponies March 10, 2012 - 11:34 pm

Awesome combo – I love anything is cookie form, and these look incredible!

Dorothy @ Crazy for Crust March 9, 2012 - 2:56 pm

Delicious! Peanut butter s’mores rock. :)

natalie (the sweets life) March 9, 2012 - 2:30 pm

i could really go for one of these right now!

amy @ fearless homemaker March 9, 2012 - 11:20 am

ooh, these sound so amazingly delicious. i’ll definitely have to give ’em a try!

Elle March 9, 2012 - 8:10 am

Oh heck yes, sign me up, please! I also have a Reese’s obsession. I find the only ones that have the pb/chocolate ratio that I like are the giant pb cups or the Easter eggs. But this is a fabulous way to get your pb/ chocolate fix!

spiffycookie March 9, 2012 - 10:03 am

I love the eggs! Or the hearts at Valentine’s day. I haven’t tried the giant cups yet somehow.

Emily @ Life on Food March 9, 2012 - 6:13 am

I never got around to making s’mores cookies either. I love your peanut butter twist. These look like so much fun. I would glad to take a few off your hands.

Baker Street March 9, 2012 - 12:55 am

Love s’mores! Your cookie sounds delicious!

Baking Serendipity March 8, 2012 - 8:59 pm

I love s’mores, but never made the cookie version, either. This adaptation is headed right to the top of my list!

Jennifer @ Peanut Butter and Peppers March 8, 2012 - 5:48 pm

Yum! These sound amazing!!! Dam you, now I want these cookies! I love smores and peanut butter, what a great combo!!

Erin @ Dinners, Dishes, and Desserts March 8, 2012 - 5:36 pm

I will be right over, I hope you have 10 left!

Sarah@SarahCupcake March 8, 2012 - 3:02 pm

I never got a chance to reign in on the s’mores blogging craze myself. Shame on us for not jumping on that bandwagon. These look awesome because you added delicious delicious peanut butter cups. Yum!

spiffycookie March 8, 2012 - 3:05 pm

I actually used the new Reese’s candy bars! But the cups would work just as well.

Renee March 8, 2012 - 2:56 pm

Yum! yumyumyumyumyumyumyum! I want one of these right now!

Lacy @ NYCityEats March 8, 2012 - 2:42 pm

Oh yumm!! I haven’t tried out the smore cookies yet so I’m still with ya on this one PLUS I love love love peanut butter! These would be the perfect smore for me. Wanna send some my way?? I’ll pay for shippin! ;) Looks sooo good!

Chung-Ah | Damn Delicious March 8, 2012 - 2:22 pm

These look fabulous. I love smores, and I’m sure I’ll love them even more in cookie form. Adding the peanut butter will just send me to heaven :)

Living The Sweet Life March 8, 2012 - 1:46 pm

You’re a genius – – I seriously think we should be best friends lol ;)…. I know that sounded creepy, but seriously – – your love of cookie (check) your love of peanut butter (check) – – could you ask for anything more ?!?

spiffycookie March 8, 2012 - 1:51 pm


Jennifer March 8, 2012 - 1:29 pm

Just found your blog and I love it. It’s fact- anytime is a good time for smores (cookies) :-)

Maureen March 8, 2012 - 1:17 pm

Yowza.. I’ve got a cookie craving going on now!

Margaret March 8, 2012 - 1:06 pm

These look great.

Choc Chip Uru March 8, 2012 - 12:17 pm

I am glad you made the cookies :D
You pictures look so perfect I now have incentive to make the myself!

Choc Chip Uru
Latest: Brown Butter Mixed M&M Chewy Cookies

Tracey March 8, 2012 - 10:05 am

Oh yes, this is such a good idea! I love Reese’s in my s’mores too – what doesn’t peanut butter make better?

Shannon March 8, 2012 - 9:38 am

I’m pretty sure I would eat all of the cookies in one sitting!!!

Amber @ Amber's Confections March 8, 2012 - 9:33 am

Reeses PB cups and S’mores – can’t get any better!

Tara @ Chip Chip Hooray March 8, 2012 - 9:18 am

Yep, sign me up. This is just what the doctor ordered today.


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