S’mores Cookie Bars Recipe
If you love the classic campfire treat, these S’mores Cookie Bars bring all the delicious flavors of s’mores into a soft, chewy dessert that’s easy to bake at home. With layers of buttery cookie dough, melted chocolate, and gooey marshmallows, these bars are the perfect sweet treat for parties, family gatherings, or whenever you’re craving something indulgent.
The best part is that you don’t need a campfire to enjoy this nostalgic dessert. These cookie bars capture the essence of traditional s’mores with a golden cookie crust, rich chocolate center, and fluffy toasted marshmallows on top.
Why You’ll Love These S’mores Cookie Bars
These cookie bars are incredibly popular because they combine the best parts of cookies and s’mores into one dessert. The cookie dough creates a soft and chewy base that holds the layers together while adding a rich buttery flavor.
They’re also easy to make and perfect for sharing. Instead of assembling individual s’mores, you simply bake everything in one pan and slice it into bars.
Another great reason to love this recipe is the perfect balance of textures. The cookie layer is soft and slightly crisp on the edges, the chocolate melts into a smooth filling, and the marshmallows turn golden and gooey on top.
Ingredients
1/2 cup unsalted butter, softened
1/2 cup brown sugar
1/4 cup granulated sugar
1 large egg
1 teaspoon vanilla extract
1 1/4 cups all-purpose flour
1/2 teaspoon baking soda
1/4 teaspoon salt
1 cup chocolate chips or chopped chocolate
1 cup mini marshmallows
1/2 cup graham cracker pieces
How to Make S’mores Cookie Bars
Start by preheating your oven to 350°F (175°C) and lining an 8×8-inch baking pan with parchment paper for easy removal.
In a mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until the mixture becomes light and fluffy.
Add the egg and vanilla extract, then mix until everything is well combined.
In a separate bowl, whisk together the flour, baking soda, and salt. Gradually add the dry ingredients to the wet mixture, stirring until a soft cookie dough forms.
Fold in the chocolate chips and graham cracker pieces so they are evenly distributed throughout the dough.
Press about two-thirds of the cookie dough into the prepared baking pan to form the base layer.
Sprinkle the mini marshmallows evenly over the dough. Then crumble the remaining cookie dough on top.
Bake for 20–25 minutes until the edges are golden and the marshmallows are slightly toasted.
Allow the bars to cool completely before slicing so they hold their shape.
Tips for Perfect Cookie Bars
Using brown sugar helps keep the bars soft and chewy.
Letting the bars cool fully before cutting prevents them from falling apart.
For extra chocolate flavor, use chunks of milk chocolate or dark chocolate bars instead of chips.
If you want a stronger graham cracker flavor, you can add a layer of graham cracker crumbs to the base before baking.
Fun Variations
These cookie bars are easy to customize depending on your taste.
You can add peanut butter chips for a nutty twist.
Swap the chocolate chips for white chocolate or caramel pieces.
For a richer dessert, drizzle melted chocolate over the bars after baking.
Some people also like adding a thin layer of chocolate spread or Nutella between the cookie layers.
How to Store S’mores Cookie Bars
Store the cookie bars in an airtight container at room temperature for up to 4 days. They can also be refrigerated if you prefer a firmer texture.
To reheat, microwave a bar for 10–15 seconds to bring back the warm, gooey marshmallow and melted chocolate texture.
Final Thoughts
These S’mores Cookie Bars are a simple and irresistible dessert that combines the nostalgic flavors of classic campfire s’mores with the convenience of a baked cookie bar. They’re soft, chewy, chocolatey, and filled with gooey marshmallow goodness.
Whether you’re making them for a party, a family dessert, or just a sweet treat for yourself, these cookie bars are guaranteed to disappear quickly.
