These EASY S’more Cookie Bars have a simple graham cracker crust, gooey chocolate chip cookie dough layer, with marshmallows and chocolate chips folded into the dough. They’re gooey, chewy, and baked in a 9×13 pan, making them the perfect dessert for a crowd!
These bars went Tiktok viral with over 4 million views – watch the video here!
Whether you’re looking for a summer treat or just an easy dessert to bring to a party, this s’more cookie bar recipe is a crowd favorite!
Why I Love These S’more Bars
- No fancy layers: While some s’more bar recipes require you to make separate time-consuming layers, these gooey cookie bars can be made in 1 bowl in under 10 minutes! You don’t even have to chill the dough!
- One bowl & no mixer needed: Yes, that’s right. You can whip up these chewy chocolate chip s’more bars in one bowl without a mixer!
- Gooey texture with a firm crust: Because we’re layering chocolate chip cookie dough on top of a layer of graham crackers, these s’more bars are basically like gooey, marshmallow chocolate chip cookies…but in bar form.
- Kid Favorite: Whether you make these for after school snacks, potluck desserts, or just as summer treats for kids, these are sure to be a crowd favorite! It’s like a giant s’more cookie cake but in a 9×13 pan.
Are you a chocoholic? I have a new chocolate version of these using my cosmic brownie cookie dough base…Chocolate S’more Cookie Bars!
Ingredients for S’more Bars
- Cookie Dough: Unsalted butter, brown sugar, granulated sugar, egg, vanilla extract, baking powder, all-purpose flour, salt.
- Graham Crackers
- Mini Marshmallows
- Semi-Sweet Chocolate Chips (milk chocolate work too)
Tip: you could also make these s’more bars with premade dough from Pillsbury or Betty Crocker mix but you will need to adjust the pan size and baking time.
Step 1: Prepare Graham Cracker Crust
Preheat oven to 350 degrees. Spray a 9×13 pan with nonstick cooking spray.
Place 17 graham cracker squares in the pan so they cover the bottom. Set aside.
Step 2: Crush Graham Crackers
Add 8 graham cracker squares (i.e. 4 double rectangle) to a large ziploc bag. Use a rolling pin or metal pan to crush the crackers until you get graham cracker crumbs. This will equal ½ cup. Set aside.
Step 3: Make Cookie Dough Layer
In a small microwave-safe bowl, melt the butter for 20-30 seconds until JUST melted (you don’t want it piping hot).
Transfer butter to a large bowl and add in white sugar and brown sugar. Use a spatula (don’t use a mixer!) to stir by hand until combined. Mix in egg. Next, mix in baking soda, baking powder, and salt.
Add flour and graham cracker crumbs, then mix until all the flour disappears into the dough. Lastly, mix in mini marshmallows and ½ cup chocolate chips.
Step 3: Drop Dough Into Pan
Using a spoon or your clean hands, drop the dough into small chunks in the pan. This will help disperse everything so that you can easily smooth it out. (I highly recommend this method rather than trying to spread out a large chunk.)
Step 4: Press & Smooth Dough
Once all dough as been added, use a spatula or your hands to press down the dough into a smooth layer (being sure to get all the corners). Be careful not to shift around the graham crackers too much.
Once spread evenly, sprinkle ½ cup of chocolate chips on top of the dough and lightly press into dough.
Step 6: Bake, Cool, Cut
Bake at 350 degrees for 12-14 minutes or until top is a light golden brown and marshmallows are lightly toasted. Do not overbake or your bars will not be soft and chewy.
If desired, press on Hershey bar rectangles for added aesthetic.
Allow to cool before cutting into 24 pieces.
Frequently Asked Questions
Can I bake these in a different sized pan?
- 9×9” square pan: For thicker bars, bake in a 9×9 pan and increase the baking time until top is lightly brown and center no longer looks wet.
- Jellyroll pan: For a larger 11×17” pan, double the recipe and bake for 18-20 minutes or until top is lightly brown and center no longer looks wet.
How to Store S’more Bars
Store in an airtight container for 2-3 days (they’ll last longer but will start to dry out after a few days).
You can also freeze these in an airtight container up to 1 month; allow to thaw to room temperature before serving
Ideas for Serving S’more Bars
- Potlucks: cut these in smaller squares (you could get up to 36 bites) for easy potluck dessert!
- Birthdays: add rainbow sprinkles into the cookie dough for a festive touch.
- Unique Christmas Cookies: add red and green jimmy sprinkles into the dough for an easy cookie tray idea! You could even cut these into triangles for a fun s’more Christmas tree.
- Camping Party Favor Idea: cut these bars in smaller squares and stack a few in my Free Printable S’more Boxes!
More Easy Cookie Recipes:
S’more Cookie Bars
These EASY S’more Cookie Bars have a simple graham cracker crust, gooey chocolate chip cookie dough layer, with marshmallows and chocolate chips folded into the dough. They’re gooey, chewy, and baked in a 9×13 pan, making them perfect dessert for a crowd!
Ingredients
- 25 graham cracker squares, divided (17 for lining bottom of pan, 8 for crushing into crumbs)
- ½ cup unsalted butter (you will be melting this)
- ½ cup brown sugar
- ¼ cup granulated sugar
- 1 large egg
- 1 ½ teaspoon vanilla extract
- ½ teaspoon baking soda
- ¼ teaspoon baking powder
- ¼ teaspoon salt
- 1 ¼ cups all-purpose flour
- 1 cup semi-sweet chocolate chips, divided (1/2 cup inside dough and 1/2 cup on top of dough)
- 1 cup mini marshmallows
- Hershey bar optional, to add after baking
Before you begin! If you make this, will you do me a huge favor and leave a review and rating letting me know how you liked this recipe? This helps my small business thrive so I can continue providing free recipes and high-quality content for you.
Instructions
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Preheat oven to 350 degrees. Spray a 9×13 pan with nonstick cooking spray.
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Place 17 graham cracker squares in the pan so they cover the bottom. Set aside.
-
Add remaining 8 graham cracker squares to a large ziploc bag. Use a rolling pin or metal pan to crush the crackers until you get graham cracker crumbs. This should equal ½ cup. Set aside.
-
In a small microwave-safe bowl, melt the butter for 20-30 seconds until JUST melted.
-
Add in white sugar and brown sugar and use a spatula to stir until combined (* do not use a mixer!). Add in egg and vanilla, then mix. Next, add in baking soda, baking powder, and salt and mix again. Add flour and graham cracker crumbs, then mix until all the flour disappears into the dough.
Lastly, mix in mini marshmallows and ½ cup chocolate chips.
-
Using a spoon or your clean hands, drop the dough into small chunks in the pan. This will help disperse everything so that you can easily smooth it out. (I highly recommend this method rather than trying to spread out a large chunk.) Once all dough as been added, use a spatula or your hands to press down the dough into a smooth layer (being sure to get all the corners). Be careful not to shift around the graham crackers too much.
-
Once spread evenly, sprinkle the remaining ½ cup chocolate chips on top of the dough and lightly press into dough.
-
Bake at 350 degrees for 12-14 minutes or until top is a light golden brown and marshmallows are lightly toasted. Do not overbake or your bars will not be soft and chewy.
If desired, press on Hershey bar rectangles immediately after baking.
Allow to cool before cutting into 24 pieces. Enjoy!
Last Step! Please leave a review and rating letting me know how you liked this recipe! This helps my small business thrive so I can continue providing free recipes and high-quality content for you.
Recipe Notes
Can I bake these in a different sized pan?
- 9×9” square pan: For thicker bars, bake in a 9×9 pan and increase the baking time until top is lightly brown and center no longer looks wet.
- Jellyroll pan: For a larger 11×17” pan, double the recipe and bake for 18-20 minutes or until top is lightly brown and center no longer looks wet.
How to Store S’more Bars
- Store in an airtight container for 2-3 days (they’ll last longer but will start to dry out after a few days).
- You can also freeze these in an airtight container up to 1 month; allow to thaw to room temperature before serving
Megan says
Absolutely love these!! So easy to make, i brought them to my class and everyone loved them!!
Melissa says
So great to hear that you and your class enjoyed them Megan! Thank you for taking the time to leave a review.
Janice Schafer says
Awesome recipe! Came out perfect! Easy directions to follow and they disappeared at a party I took them to!
Melissa says
So glad that you and the party guests enjoyed the S’more Cookie Bars! Thank you for leaving a review Janice.
Tjanne says
I liked it a lot but I would appreciate it if the measurements were also in grams I’m from Europe and I have no idea how much 1 cup is.
Melissa says
Hi Tjanne! I am working to convert my recipes but it’s a long process to ensure they’re accurate. In the meantime, there are a lot of free charts out there if you search “cups to metric conversion guide”.
Janice Schafer says
Delicious and a beautiful presentation! Super easy recipe to follow. Works well and dough not sticky. You can do this. Simple
Melissa says
Thank you for taking the time to leave a review Janice. I am so happy that you found the recipe both easy and delicious!
Desirae Aldana says
I absolutely adore them! They were so easy to make and didn’t take too much time! Plus most of the ingredients I had at home so it was inexpensive as well!
Melissa says
I am so glad that you enjoyed them Desirae, thank you for leaving a review!
Janice Schafer says
Simple directions explain how to assemble and it works well. Filling is awesome texture and not sticky, easy to work with, I would recommend making it right now!!!
Melissa says
Thank you Janice for leaving a review! I am glad that you found the s’mores bars easy to make!
Janice Schafer says
So easy to make, directions explain how to assemble and it works well. Filling is awesome texture and not sticky, easy to work with, I would recommend making it right now!!!
Melissa says
Thank you Janice for taking the time to leave a review. I am so happy to read that you found the recipe easy to make.
Shae says
I tried this recipe tonight and it was so good! I will definitely have to do this again!
Melissa says
Thank you for leaving your review Shae! So glad that you enjoyed the S’more bars!
Julie says
I did end up using a bag of cookie mix and folded in the marshmallows to that and added vanilla extract, these were SO AMAZING! Will definitely be bringing these to cookouts all summer!! So glad I came across this on tik tok
Melissa says
Thank you Julie for taking the time to leave a review! I am happy to hear that you were able to customize the recipe and enjoy it!
Tomma Marcincuk says
These cookie bars provide everything I love about s’mores! They are fantastic!
Melissa says
I am so glad that you loved these Tomma! Thank you very much for taking the time to leave a review, I appreciate it!