S’more Cookie Bars

Soft & chewy graham cracker cookie bars with chocolate and marshmallow swirls.

Soft & chewy graham cracker cookie bars with chocolate and marshmallow swirls! Easy recipe on sallysbakingaddiction.com

If I could live off of one food for the rest of my life, it would be a s’more. The gooey marshmallow, the melty chocolate, the grahams. Technically that’s three foods, but stick with me here.

I’d also live off of peanut butter, mangoes, and this carrot cake.

But seriously… s’mores.

I don’t know anyone who can resist a s’more.

And if they can, their tastebuds must not be working properly.

Soft & chewy graham cracker cookie bars with chocolate and marshmallow swirls! Easy recipe on sallysbakingaddiction.com

My infatuation with s’mores expands to brownie pie, chocolate chip cookies, puppy chow, PEEPS, peanut butter cookies, rice krispie treats, and 7 layer bars. Pick your poison.

And yesterday, I wanted some more… s’more.

I made a basic cookie dough, swapping some of the flour with graham cracker crumbs. The cookie part tastes like thick & soft graham crackers. Almost like a graham cracker blondie – buttery, brown sugary, chewy, grahamy, and sweet. To make these, you’ll simply layer 2/3 of the graham cracker cookie dough into the bottom of a pan. Top with chocolate chips, marshmallow creme (Fluff), and then the rest of the graham cracker cookie dough.

It’s a variation of your classic campfire treat. Simply bake everything together into a bar and you have a travel friendly, unique way to get your s’more fix.

Soft & chewy graham cracker cookie bars with chocolate and marshmallow swirls! Easy recipe on sallysbakingaddiction.com

An important thing to note: do not use marshmallows in lieu of the marshmallow creme. The marshmallows will disintegrate into the dough, creating unpleasant looking craters, and become virtually invisible. You won’t really even taste them. I’ve tried that with cookies before. An ugly fail! Use marshmallow creme, which stands up to the heat of the oven.

I love marshmallow creme and don’t bake with it nearly enough! Fluff reminds me of my sister, Sarah. Growing up, Sarah always asked for fluffernutter sandwiches and I stuck to PB&Js.

Soft & chewy graham cracker cookie bars with chocolate and marshmallow swirls! Easy recipe on sallysbakingaddiction.com

These cookie bars are SO soft. Kevin asked me how I got them to be so soft. “Did you underbake them like you do with your cookies?” No – I didn’t. The graham cookie layer just stays soft when baked for 25 minutes. The tops of my cookie bars got a little brown, so they aren’t underbaked. Just magically soft. They will melt in your mouth.

I can’t decide which part I like the most. The melty chocolate? The gooey marshmallow? Or the soft & chewy graham cookie. I’m not really sure – it just tastes incredible when sandwiched all together. My tip to you: eat these warm! You’ll really feel like you’re next to the campfire on a hot summer night.

Kevin’s coworkers are getting the leftover bars today. Guys, if you’re reading this… you’re welcome. And I’m sorry there aren’t that many leftover. I cannot resist s’mores!!

Soft & chewy graham cracker cookie bars with chocolate and marshmallow swirls! Easy recipe on sallysbakingaddiction.com

Follow me on Instagram and tag #sallysbakingaddiction so I can see all the SBA recipes you make. 

Oh hi! Welcome to S’mores Mania.

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S’mores Cookie Bars

  • Author: Sally
  • Prep Time: 10 minutes
  • Cook Time: 25 minutes
  • Total Time: 3 hours
  • Yield: 16 bars
  • Category: Bars
  • Method: Baking
  • Cuisine: American


Soft & chewy graham cracker cookie bars with chocolate and marshmallow swirls.


  • 1/2 cup (115g) salted butter, softened to room temperature*
  • 3/4 cup (150g) packed light brown sugar
  • 1 teaspoon pure vanilla extract
  • 1 large egg, at room temperature
  • 1 cup (125g) all-purpose flour (spoon & leveled)
  • 1 cup (100g) graham cracker crumbs (9 graham crackers)
  • 1/2 teaspoon baking powder
  • 1 and 1/4 cup (225g) semi-sweet chocolate chips
  • 1 heaping cup marshmallow creme


  1. Preheat oven to 350°F (177°C). Line an 8×8 or 9×9 square baking pan with aluminum foil, leaving enough overhang on the sides to easily remove the bars when they have cooled. Set aside.
  2. In a large bowl using handheld or stand mixer fitted with a paddle attachment, cream the butter and brown sugar together on medium-high speed. Beat for about 2 minutes until smooth and combined, then add the vanilla extract and egg, beating until combined. Scrape the sides of the bowl down as needed. Set aside.
  3. Toss the flour, graham cracker crumbs, and baking powder together until combined. With the mixer running on low, slowly add the dry ingredients into the wet ingredients. Mix until combined.
  4. Press 2/3 of the graham cookie dough into prepared pan. Spread the marshmallow creme on top. This will be tricky since the marshmallow creme is so sticky, but do the best you can to get an even layer. (Sometimes I spray the bottom of a spatula with nonstick spray to spread it around.) Sprinkle the marshmallow creme with chocolate chips. Mold the remaining cookie dough into flat pieces and layer on top of the chocolate chips. You won’t have enough dough to make one single layer, so some chocolate chips will be exposed. That’s ok.
  5. Bake the bars for 25 minutes, or until the top is lightly golden brown. Allow to cool completely with the pan set on a wire rack before cutting into squares.
  6. Bars stay fresh covered tightly at room temperature for up to 1 week, if they last that long! I enjoy the cookie bars warmed up in the microwave for 20 seconds.


  1. Freezing Instructions: Bars can be frozen for up to 3 months. Simply thaw overnight in the refrigerator, then bring to room temperature before serving.
  2. Butter: If using unsalted butter, add in 1/4 teaspoon of salt with the flour.

Keywords: smore cookie bars

Soft, chewy, and completely addicting S'mores Cookie Bars. Easy to make, too! Recipe on sallysbakingaddiction.com


  1. Jen @ Savory Simple says:

    You are queen of the s’mores desserts!

  2. Oh wow, these sound so good! Love the idea of making S’More treats in the oven – so much safer than making them over a fire :0)

  3. These look AMAZING Sally! I was just craving S’mores in bar form…I think I found the perfect recipe! 🙂

  4. Yum, love S’mores in any form but especially love bars since they are easy to transport:) These look incredible Sally! I love the sound of oozy marshmallows with gooey graham cracker cookie dough!

  5. Faith @ Pixie Dust Kitchen says:

    I would have never even thought of using graham crackers to replace some of the flour- that’s a genius idea! S’more’s are one of my favorite things to eat, but mostly because I love the flavor combination- real s’mores are just too messy!

  6. Nancy @ gottagetbaked says:

    The look and sound of these cookie bars is irresistible, Sally! You are a s’mores genius. Thanks for the tip on marshmallow v. marshmallow fluff. I don’t think I’ve ever seen marshmallow fluff sold in Vancouver. I think I’ll need to look harder because my life won’t be complete until I make these.

  7. Regina @ SpecialtyCakeCreations says:

    It must be summer or something 🙂
    I saw 4 different s’more-related recipes published in the food blog world (yours and mine included) It simply is an awesome treat, no wonder the love for it everywhere

    1. Regina @ SpecialtyCakeCreations says:

      Yes! S’mores are always right. Would love for you to check it out, its not by me though but a guest post by Carla’s Confectioms

  8. jodi stewart says:

    Okay, Seriously. Your entire blog is amazing. I’ve followed you on twitter, Pinterest and Bloglovin so I don’t miss a thing. 🙂

    1. Thanks Jodi!! Very, very much.

  9. Jamie @lifelovelemons says:

    I think I might have to go make these right this second. I swear. omg

  10. It’s decided. I’m making these tonight.

    I am in love with s’mores. Okay — that sounds crazy…but s’mores are my love. They remind me of family camping trips.

    This recipe is perfection. Graham crackers are a bit hard to eat because the crumbs get everywhere…so the soft graham cookie layer is the perfect compromise!! I cannot wait to make these!! Thank you so much for posting the recipe!

    1. I hope you enjoy, Kelly! I simply loooove these bars and I know you’ll like them too. Let me know how they turn out!

      1. I made them!! And they were DELICIOUS! My family ate them up in one day!
        I did a little blog post about them. Thank you again for the recipe!!

      2. I can’t wait to check them out on your blog, Kelly! Thanks!

  11. jodye @ chocolate and chou fleur says:

    Oh my, Sally. these look too good for words! I certainly can’t resist a s’more, but they’re a bit of a rarity since vegan marshmallows are quite pricy, and eve more of a hassle to make. But I may have to splurge and make these!

  12. Alexis @ deliciousfoodideas.net says:

    While I’m not 100% exactly sure what a s’more is (or a fluffernutter for that matter, deprived childhood?), these look amazing. Thanks for the recipe Sally.

    1. It’s ok Alexis. 🙂 Fluffernutters are peanut butter + marshmallow creme sandwiches. S’mores are two graham crackers with chocolate and marshmallow inside. Both delicious!

  13. Sarah K. @ The Pajama Chef says:

    smores would be pretty awesome to live off of!

  14. I seriously just made a recipe almost like this…to up the chocolate factor, I use two king-size Hershey’s bars, which fit perfectly into an 8×8 pan. Soooo good! I also just had an incredible mango, so I can understand being torn between s’mores and mangoes. 😉

    1. Hershey Bars! Genius. 🙂 And yes… mangoes… all the time

  15. mmmm… dark chocolate s’mores.. so good!

  16. Ashley @ Kitchen Meets Girl says:

    I haven’t had a real s’more in ages! I LOVE the look of these bars! We’re hosting a pool party for my son’s t-ball team in a few weekends, and I think these would be just perfect for a rowdy group of 5-6 year olds. 🙂 Um, plus the moms.

  17. Ashley @ Wishes and Dishes says:

    I can not resist a nice gooey smore!!!

  18. Averie @ Averie Cooks says:

    The whole Smores concept, in bar form, is one that I love. I have 3 or 4 recipes for some on my site and put another one in my cookbook with PB Cups and PB worked in, too. Pretty much the melty, gooey Fluff can do no wrong! I love how yours turned out. Kevin’s coworkers are VERY lucky 🙂

    And you know what’s crazy..Yesterday!! at the groc store I picked up some graham crackers and m’mallows for a smores recipe I had come into my brain. Not even kidding!

    1. of course you were. 🙂 I can’t wait to see your s’more recipe!!

  19. Rachel Cooks says:

    I have been SO craving s’mores lately. These look fantastic!

  20. I love S’more bars cause they are kind of like a doughy chocolate chip cookie bar, but made 100x better with marshmallows and graham crackers!

    I mean these things just look awesome!!!

    1. Doughy chocolate chip cookie bar – yes, that is exactly what these are! With the taste of graham cracker baked inside. =) Thanks Tieghan!

  21. Stacy | Wicked Good Kitchen says:

    Sally’s dishin’ up more S’more love! I. LOVE. IT. You had me at, “Can’t decide which part I like the most. The melty chocolate? The gooey marshmallow? Or the soft & chewy graham cookie.” and “Serve warm.” YES! Such great tips and a fabulous recipe for that S’mores fix! Kevin’s co-workers are really lucky! xo

    1. Kevin said they loved them and were gone very, very quickly. 🙂 Thanks Stacy!

  22. Mimi @ Culinary Couture says:

    Ohhh I’ve made something similar to this before–I used Nutella in place of the chocolate! They were heavenly! I can’t wait to try this classic version 🙂

    1. YUM! Must try it with Nutella 🙂

  23. My FAVORITE way to eat a s’more is the indoor version made with golden grahams, choco chips and marshmallows–HAVE MERCY these are soooo delish!

  24. Gloria @ Simply Gloria says:

    I agree with you…I’d live off s’mores too! These are the perfect yummy treat. Definitely THE summer treat!

    1. THE summer treat – why thank you Gloria 🙂 Have a great weekend!

  25. Cookie bars are one of my favorite things! Adding marshmallows to make it a “s’more” is superb. Yum yum yummy.

  26. Haha! Yes, fluff is delicious. And I love s’mores too (obviously!) Nothing beats sitting around a real campfire in the summertime with s’mores! I usually add more than one marshmallow 🙂

  27. Dan from Platter Talk says:

    It is definitely smore season at our cottage, but sometimes (including this weekend) the weather has other ideas making our fire pit a little soggy. This is such a great alternative to doing them outdoors! Your photos are beautfiul, thanks for posting such a great idea!

  28. tijuana (po' man meals) says:

    my favorite way to eat a s’more is DEFINITELY on a brownie. i made my s’more brownies recipe one day, and when we tasted them we almost passed out. luckily my neighbors were there to catch us, although they ran off with the plate of brownies. 🙂 anyway, i’m going to try these, sally! my kids would LOVE these. it gives me a fun, crafty… tasty project to do over the summer with them. very educational, too. 🙂

    1. s’more brownies – sounds so good right now. 🙂

  29. Set aside the fact that I definately *need* to make these cookie bars as soon as I can find the time, I just wanted to send you a big “Thank you!” for adding metric measurements to your recipe!! As a regular reader from Germany I appreciate this very much, Sally. It makes baking your great stuff just so much easier for us from the other side of the Pond. 🙂

    1. Sarah – I’m glad you appreciate that! I’ve began to try to add metric to my recipes going forward. 🙂

  30. Courtney @ Neighborfood says:

    I love replacing graham cracker crumbs for flour in cookie recipes! It adds just the right amount of s’morey goodness. These look awesome!

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