Campfire S’mores Cookie Squares

The Ultimate Easy S’more Cookie Bars: Gooey, Chewy, and Crowd-Pleasing!

Get ready to indulge in the most irresistible dessert that brings the nostalgic flavors of s’mores into a convenient, crowd-pleasing bar form. These **Easy S’more Cookie Bars** feature a buttery graham cracker crust, a luscious layer of chocolate chip cookie dough infused with marshmallows and extra chocolate chips, all baked to gooey, chewy perfection. Crafted in a simple 9×13 pan, they are the ideal treat for any gathering, big or small. Forget complicated desserts – this recipe is designed for maximum flavor with minimal effort!

These bars aren’t just a beloved family recipe; they even went **TikTok viral with over 4 million views!** You can watch the video here to see just how easy and delicious they are.

stacked s'more cookie bars squares
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Whether you’re planning a summer BBQ, need a quick dessert for a potluck, or simply craving a sweet treat, this s’more cookie bar recipe is an absolute winner. Its ease of preparation and universally loved flavors make it a true crowd-favorite that disappears from the plate almost as fast as it’s made!

Why You’ll Love These Easy S’more Cookie Bars

These s’more bars aren’t just another dessert recipe; they’re designed for ultimate convenience and deliciousness. Here’s why they stand out:

  1. No Fancy Layers, No Fuss: Many s’more bar recipes involve intricate layering, toasting marshmallows separately, or chilling dough for hours. Not these! Our gooey cookie bars can be whipped up in a single bowl in under 10 minutes. There’s no need to chill the dough, making this recipe perfect for those spontaneous dessert cravings or last-minute party preparations. It’s truly a straightforward baking experience that delivers exceptional results without the extra hassle.
  2. One Bowl & No Mixer Needed: Yes, you read that right! You can create these rich, chewy chocolate chip s’more bars with just one bowl and a spatula. This means less cleanup and no special equipment required, making it accessible for every baker, regardless of their kitchen setup. It’s the ultimate hassle-free recipe for busy days or when you simply want to keep things simple.
  3. Irresistible Gooey Texture with a Firm Crust: The magic of these bars lies in their incredible texture contrast. We start with a sturdy, buttery graham cracker base that provides a satisfying crunch. Layered on top is a soft, ultra-gooey cookie dough loaded with melty chocolate chips and fluffy marshmallows. Each bite is like a deconstructed, elevated s’more in bar form – a perfect blend of crispness and chewiness that’s utterly addictive.
  4. A Guaranteed Kid Favorite (and Adult, too!): Whether you’re making these for after-school snacks, a school bake sale, or as delightful summer treats, these s’more bars are an instant hit with kids. But let’s be honest, adults will love them just as much! They’re like a giant, shareable s’more cookie cake, baked conveniently in a 9×13 pan, ensuring there’s enough to go around for everyone to enjoy.

Are you a true chocoholic? If you can’t get enough chocolate, I also have a decadent chocolate version of these bars, crafted using my cosmic brownie cookie dough base. Find the recipe here: Chocolate S’more Cookie Bars!

cut s'more cookie bars squares

Essential Ingredients for Your S’more Cookie Bars

Crafting these delectable s’more cookie bars requires a few simple, pantry-staple ingredients. Here’s what you’ll need to create this gooey masterpiece:

  • Cookie Dough Foundation: This includes unsalted butter (for richness and moisture), brown sugar (for that classic chewy texture and molasses flavor), granulated sugar (for sweetness and crisp edges), a large egg (for binding and structure), vanilla extract (to enhance all the sweet flavors), baking powder and baking soda (for lift and chewiness), all-purpose flour (the main structural component), and a pinch of salt (to balance the sweetness).
  • Graham Crackers: These form the iconic base and also get crushed into the cookie dough, infusing every bite with that classic s’mores flavor.
  • Mini Marshmallows: The star of the s’mores experience! Mini marshmallows melt into pockets of gooey sweetness within the cookie dough.
  • Semi-Sweet Chocolate Chips: These provide melty, rich chocolate pockets throughout the bars. Milk chocolate chips can also be used for a sweeter, creamier profile.

Pro Tip: For an even faster shortcut, you can certainly make these s’more bars with premade cookie dough from brands like Pillsbury or Betty Crocker. Just be mindful that you might need to adjust the pan size and baking time slightly, as pre-made doughs can vary in consistency and rise.

@designeatrepeat

These s’more cookie bars have no business being this good ✨🍫🔥 #summervibes #smores #cookies #easyrecipe

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Step 1: Prepare the Graham Cracker Crust

Begin by preheating your oven to 350 degrees Fahrenheit (175°C). Lightly spray a 9×13 inch baking pan with nonstick cooking spray to prevent sticking and ensure easy removal of your bars. Carefully arrange 17 full graham cracker squares in a single layer to completely cover the bottom of the pan. This forms the foundational crust for your s’more bars. Set the pan aside for now.

graham crackers lining bottom of 9x13 pan

Step 2: Crush Remaining Graham Crackers

Take the remaining 8 graham cracker squares (which is equivalent to 4 double-rectangle crackers) and place them into a large Ziploc bag. Using a rolling pin or even the bottom of a sturdy metal pan, crush the crackers until they form fine crumbs. You should aim for approximately ½ cup of graham cracker crumbs. These crumbs will be incorporated directly into the cookie dough, adding an extra layer of authentic s’mores flavor and texture. Set these aside with your prepared crust.

crushing graham crackers into crumbs in ziploc bag with rolling pin

Step 3: Prepare the Gooey Cookie Dough Layer

In a small microwave-safe bowl, gently melt the ½ cup of unsalted butter for 20-30 seconds until it’s just barely melted. It should be liquid but not piping hot, as excessively hot butter can affect the dough’s texture. Transfer the melted butter to a large mixing bowl. Add in the brown sugar and granulated sugar. Using a sturdy spatula (avoid using an electric mixer for this dough, as overmixing can lead to a tough texture), stir by hand until the sugars are fully combined with the butter and the mixture is smooth.

Next, mix in the large egg and vanilla extract until well incorporated. Then, add the dry leavening agents: baking soda, baking powder, and salt, mixing until just combined. Finally, add the all-purpose flour and your prepared graham cracker crumbs. Stir gently until all the flour has disappeared into the dough and no dry streaks remain. Be careful not to overmix. To complete the dough, fold in the mini marshmallows and ½ cup of the semi-sweet chocolate chips.

step by step photos on how to make s'more cookie bars

Step 4: Evenly Distribute Dough Into Pan

Now it’s time to layer your delicious cookie dough! Using a large spoon or your impeccably clean hands, drop the cookie dough into small, evenly sized chunks over the graham cracker crust in the prepared 9×13 inch pan. This method is crucial as it helps to disperse the thick, gooey dough more uniformly, making it significantly easier to smooth out later. Attempting to spread one large chunk of dough can lead to an uneven layer and potentially disrupt your graham cracker base. Ensure the chunks are spread across the entire pan.

unbaked s'more cookie bars in 9x13 pan

Step 5: Press & Smooth the Dough, Add Toppings

Once all the dough chunks have been distributed over the graham cracker base, use a clean spatula or your hands to gently press and smooth the dough into an even layer. Make sure to reach all the corners of the pan to ensure consistent thickness throughout. Be mindful not to apply too much pressure or shift the graham crackers underneath. After the dough is smoothly spread, generously sprinkle the remaining ½ cup of semi-sweet chocolate chips over the top. Lightly press these chocolate chips into the dough, ensuring they adhere well and create a beautiful, melty topping when baked.

unbaked s'more cookie bars in 9x13 pan

Step 6: Bake, Cool, and Cut for Ultimate Enjoyment

Place your pan into the preheated oven and bake for 12-14 minutes. The bars are ready when the top is a light golden brown and the marshmallows are lightly toasted and gooey. It’s crucial not to overbake, as this will result in dry, tough bars instead of the desired soft and chewy texture. Keep an eye on them – a minute or two can make a big difference!

Immediately after removing from the oven, if desired, you can press Hershey bar rectangles onto the warm, melted cookie topping for an added authentic s’mores aesthetic and extra chocolatey goodness. This optional step enhances both the look and flavor.

Allow the s’more cookie bars to cool completely in the pan before attempting to cut them. Cooling is essential for the bars to set properly, ensuring clean, defined slices. Once fully cooled, cut them into 24 perfect pieces and serve. Enjoy these delightfully gooey and chewy treats!

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Frequently Asked Questions About S’more Cookie Bars

Can I bake these in a different sized pan?

Absolutely! The recipe is versatile:

  • 9×9″ Square Pan: For a batch of thicker, more substantial bars, you can bake them in a 9×9 inch square pan. Be sure to increase the baking time. Keep an eye on them and continue baking until the top is a light golden brown and the center no longer appears wet or unset.
  • Jellyroll Pan (11×17″): If you’re looking to serve a much larger crowd, you can double the entire recipe and bake it in an 11×17 inch jellyroll pan. The baking time for a doubled recipe in this larger pan will typically be around 18-20 minutes, or until the top is lightly browned and the center is set.
How do I store the S’more Bars for optimal freshness?

Proper storage is key to keeping these bars delicious:

  • Room Temperature: Store your s’more bars in an airtight container at room temperature for 2-3 days. While they might last a bit longer, they tend to start drying out after a few days, losing some of their signature gooeyness.
  • Freezing: These bars freeze beautifully! Place them in an airtight freezer-safe container or bag for up to 1 month. When you’re ready to enjoy them, simply allow them to thaw to room temperature before serving. You can also gently warm them in the microwave for a few seconds for that fresh-baked, extra gooey experience.
Can I use different types of chocolate?

Yes, absolutely! While semi-sweet chocolate chips are classic, feel free to experiment. Milk chocolate chips will give a sweeter, creamier melt, dark chocolate chips will add a richer, more intense flavor, and even chopped chocolate bars can be used for varying textures and a more gourmet feel.

What if I don’t have mini marshmallows?

If you only have large marshmallows, you can definitely use them! Just cut them into smaller pieces before folding them into the dough. This will help them melt evenly and distribute better throughout the bars.



Creative Ideas for Serving Your S’more Cookie Bars

These versatile s’more cookie bars are perfect for any occasion. Here are some fun and creative ways to serve and enjoy them:

  • Effortless Potluck Dessert: Cut these bars into smaller squares – you can easily get up to 36 bites – for a perfect, easy-to-grab potluck dessert. Their robust nature makes them ideal for transporting and sharing.
  • Festive Birthday Treat: To add a celebratory touch, fold in colorful rainbow sprinkles into the cookie dough. This makes them extra festive and perfect for birthday parties, appealing to both kids and adults.
  • Unique Christmas Cookies: For a holiday twist, incorporate red and green jimmy sprinkles into the dough. This creates an easy and unique addition to any Christmas cookie tray. You could even get creative and cut the cooled bars into festive triangle shapes to resemble s’more Christmas trees!
  • Charming Camping Party Favor Idea: Planning a camping-themed party? Cut these bars into smaller squares and stack a few inside my Free Printable S’more Boxes. They make an adorable and delicious take-home favor that guests will absolutely adore.

Discover More Easy & Delicious Cookie Recipes:

  • Chewy M&M Cookie Bars
  • Red Velvet Cookie Cake
  • Chocolate Cake Mix Cookies
  • Homemade Cookie Cake Recipe
Cut s'more cookie bars in squares
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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!

4.97 from 118 votes

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Total Time: 22 minutes
Servings: 24 bars
By: Melissa Rose

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 (½ cup inside dough and ½ cup on top of dough)
  • 1 cup mini marshmallows
  • Hershey bar optional, to add after baking
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Instructions

  • Preheat oven to 350℉. Spray a 9×13 pan with nonstick cooking spray.
  • 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 unsalted butter (½ cup, i.e. 1 stick) for 20-30 seconds until JUST melted. 
  • Add in granulated sugar (¼ cup) and brown sugar (½ cup) and use a spatula to stir until combined (*do not use a mixer!). Add in egg (1 large) and vanilla extract (1 ½ teaspoons), then mix. Next, add in baking soda (½ teaspoon), baking powder (¼ teaspoon), and salt (¼ teaspoon) and mix again. Add all-purpose flour (1 ¼ cups) and graham cracker crumbs (½ cup), then mix until all the flour disappears into the dough.

    Lastly, mix in mini marshmallows (1 cup) and ½ cup of the semi-sweet 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 semi-sweet chocolate chips on top of the dough and lightly press into dough.
  • Bake at 350℉ 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.

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

Nutrition

Calories: 198kcal | Carbohydrates: 28g | Protein: 2g | Fat: 8g | Saturated Fat: 4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Trans Fat: 1g | Cholesterol: 17mg | Sodium: 150mg | Potassium: 90mg | Fiber: 1g | Sugar: 14g | Vitamin A: 132IU | Calcium: 25mg | Iron: 1mg