Easy S’mores Cookie Bars Campfire Treat

S’mores cookie bars are more than just a dessert; they’re a nostalgic hug in edible form. Who doesn’t remember those campfire nights, the crackle of the fire, and the pure joy of that perfectly toasted marshmallow sandwiched between graham crackers and melty chocolate? That iconic flavor combination, so deeply ingrained in our memories, is exactly what makes S’mores cookie bars such an irresistible treat. They capture the essence of that classic campfire delight and elevate it into a convenient, crowd-pleasing bar that you can enjoy anytime, anywhere.

What sets these S’mores cookie bars apart is their genius simplicity.

We’ve taken all the beloved components – a buttery, chewy cookie base, a layer of rich chocolate, and a gooey, golden-brown marshmallow topping – and transformed them into a single, glorious confection. Forget the sticky fingers and the struggle to assemble each s’more individually. These bars deliver that same symphony of flavors and textures in every single bite, making them perfect for parties, potlucks, or simply a cozy night in. Get ready to rediscover the magic of s’mores with these incredible cookie bars!

S’mores Cookie Bars

Oh, the glorious combination of gooey marshmallow, melty chocolate, and crumbly graham cracker, all wrapped up in a chewy cookie base! S’mores are a campfire classic for a reason, but let’s be honest, sometimes getting a fire going feels like a lot of effort. That’s where these S’mores Cookie Bars come in. They capture all the magic of a perfect s’more but in an easy-to-make, shareable bar format that you can enjoy any time of year. These bars are incredibly satisfying, with a tender, buttery cookie base that’s studded with crushed graham crackers for that authentic s’more flavor. Then, we layer on chunks of Hershey’s chocolate that melt into luscious pools, and finally, a generous topping of fluffy marshmallow that gets beautifully toasted. Trust me, these will disappear faster than you can say “smores!”

Ingredients:

• 1/2 cup Butter (softened, salted or unsalted)
• 1/3 cup brown sugar
• 1/4 cup granulated sugar
• 1 egg
• 1 tsp vanilla extract
• 1 &1/2 cup AP flour
• 1/2 cup graham crackers (finely crushed, about 3.5 sheets, for the cookie dough)
• 1/4 tsp salt
• 3/4 tsp baking soda
• 5 standard Hershey bars
• 1 & 1/2 cup Marshmallow fluff

Cooking Instructions:

1. Preheat and Prep the Pan:

   First things first, let’s get our oven ready and our pan prepared. Preheat your oven to 350 degrees Fahrenheit (175 degrees Celsius). While the oven is heating up, take an 8×8 inch baking pan and line it with parchment paper. Leave some overhang on the sides – this is your “sling” which will make it super easy to lift the baked bars out of the pan later. Lightly grease the parchment paper and the exposed sides of the pan to ensure nothing sticks. This step is crucial for achieving clean cuts and easy removal.

2. Cream the Butter and Sugars, Then Add Wet Ingredients:

   In a large mixing bowl, combine the softened butter, brown sugar, and granulated sugar. Use an electric mixer (or a good old-fashioned whisk and some elbow grease!) to cream these together until the mixture is light and fluffy. This process incorporates air into the dough, which contributes to the texture of your cookie bars. Once creamed, beat in the egg and the vanilla extract until everything is well combined and smooth. Don’t overmix at this stage; just ensure everything is incorporated.

3. Incorporate the Dry Ingredients and Graham Crackers:

   In a separate medium bowl, whisk together the all-purpose flour, finely crushed graham crackers, salt, and baking soda. The crushed graham crackers are key to infusing that classic s’more flavor right into the cookie dough. Make sure they are finely crushed so they distribute evenly throughout the bars. Gradually add the dry ingredient mixture to the wet ingredients, mixing on low speed (or by hand) until just combined. Be careful not to overmix the dough once the flour is added, as this can lead to tough cookie bars. We want tender, chewy bars, so stop mixing as soon as you no longer see streaks of flour.

4. Assemble the Base and Chocolate Layers:

   Spread about two-thirds of the cookie dough evenly into the prepared baking pan. Use your hands or a spatula to press it down firmly and create a compact, even base. Now, unwrap your five standard Hershey bars and break them into pieces. Arrange these chocolate pieces evenly over the cookie dough base. Try to cover as much of the surface as possible, as these will melt into gooey chocolate pockets. Don’t worry if there are small gaps; the marshmallow fluff will fill them in.

5. Top with Marshmallow Fluff and Bake:

   Dollop the marshmallow fluff over the chocolate layer. Use a spatula or the back of a spoon to spread it as evenly as possible. It doesn’t have to be perfectly smooth; a slightly rustic look is part of the charm. Now, take the remaining one-third of the cookie dough and crumble it over the top of the marshmallow fluff. This will create lovely pockets of cookie dough that bake up golden brown and delicious.
   Place the pan in the preheated oven and bake for 25-30 minutes, or until the edges are golden brown and the marshmallow on top is starting to puff up and lightly toast. Keep an eye on it, as marshmallow can go from perfectly toasted to burnt very quickly. You might even want to turn on your oven’s broiler for the last minute or two to achieve a beautiful golden-brown, slightly toasted marshmallow top, but watch it *very* closely to prevent burning.

6. Cool and Cut:

   Once baked, remove the pan from the oven and let the bars cool completely on a wire rack. This is a crucial step! If you try to cut them while they’re hot, they’ll be messy and fall apart. Allowing them to cool allows the chocolate to set and the bars to firm up. Once completely cool, use the parchment paper sling to lift the entire slab out of the pan. Place it on a cutting board and cut into squares. For the best s’mores bar experience, I recommend cutting them into at least 16 squares, but you can adjust the size to your preference. These bars are best enjoyed at room temperature, allowing the gooey chocolate and soft marshmallow to really shine.

Conclusion:

I hope you’ve enjoyed learning how to create these irresistible s’mores cookie bars! These bars are a truly fantastic dessert because they perfectly capture all the nostalgic, gooey, chocolatey, and marshmallowy goodness of a campfire s’more, all in a convenient and shareable bar form. They are incredibly easy to make, requiring minimal fuss, and the result is a crowd-pleasing treat that’s sure to disappear quickly. The combination of a buttery graham cracker crust, a rich chocolate chip cookie dough layer, and a toasted marshmallow topping is simply divine and offers a delightful textural contrast.

These s’mores cookie bars are wonderfully versatile when it comes to serving. They are fantastic enjoyed at room temperature, allowing the chocolate to be perfectly melty and the marshmallow to be soft. For an extra special touch, I love warming them up slightly in the oven or microwave for a few seconds, making them even gooier. They are perfect for potlucks, barbecues, birthday parties, or just a cozy night in with family. Don’t be afraid to get creative with variations! You could add a sprinkle of sea salt on top before baking to enhance the chocolate flavor, or even swirl in some peanut butter into the cookie dough for a peanut butter s’more twist. I really encourage you to give this recipe a try; I’m confident you’ll love it as much as I do!

Frequently Asked Questions:

How do I store leftover s’mores cookie bars?

You can store any leftover s’mores cookie bars in an airtight container at room temperature for up to 3 days. If the weather is particularly warm, or if you prefer them a bit firmer, you can store them in the refrigerator for up to a week. Just let them come back to room temperature for about 15-20 minutes before enjoying for the best texture.

Can I make the s’mores cookie bars ahead of time?

Yes, absolutely! You can prepare the entire batch of s’mores cookie bars a day in advance. Once they have cooled completely, store them in an airtight container at room temperature. They are often even better the next day as the flavors have a chance to meld together beautifully.

What kind of chocolate chips work best?

I find that semi-sweet chocolate chips offer a perfect balance of sweetness and richness that complements the graham cracker and marshmallow flavors wonderfully. However, you can use milk chocolate chips for a sweeter bar, or even dark chocolate chips if you prefer a more intense chocolate flavor. Mini chocolate chips also work well for more even distribution throughout the cookie dough layer.

S’mores Cookie Bars

Decadent cookie bars layered with chocolate and marshmallow for a classic s’mores experience.

Prep Time
20 Minutes

Cook Time
30 Minutes

Total Time
50 Minutes

Servings
16

Ingredients

• 1/2 cup Butter (softened, salted or unsalted)
• 1/3 cup brown sugar
• 1/4 cup granulated sugar
• 1 egg
• 1 tsp vanilla extract
• 1 & 1/2 cup AP flour
• 1/2 cup graham crackers (finely crushed, about 3.5 sheets, for the cookie dough)
• 1/4 tsp salt
• 3/4 tsp baking soda
• 5 standard Hershey bars
• 1 & 1/2 cup Marshmallow fluff

Instructions

1. Step 1
   Preheat oven to 350°F (175°C). Grease and flour an 8×8 inch baking pan.
2. Step 2
   In a large bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy.
3. Step 3
   Beat in the egg and vanilla extract.
4. Step 4
   In a separate bowl, whisk together the AP flour, finely crushed graham crackers, salt, and baking soda.
5. Step 5
   Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Press half of the cookie dough evenly into the prepared baking pan.
6. Step 6
   Layer the Hershey bars over the cookie dough. Spread the marshmallow fluff evenly over the chocolate.
7. Step 7
   Crumble the remaining cookie dough over the marshmallow fluff. Bake for 25-30 minutes, or until the edges are golden brown and the center is set.
8. Step 8
   Let cool completely in the pan before cutting into bars.

Important Information

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.