S'mores Bars

These S’mores Bars are everything you love about classic campfire s’mores, packed into an easy-to-make, shareable dessert! With a buttery graham cracker cookie base, gooey marshmallows, and melty chocolate chips, these bars bring nostalgic summer flavor to your kitchen year-round!

These are the perfect treat to bake for potlucks, summer parties, pajama parties or even a sweet treat for family movie night. If you love easy desserts try my Easy Oreo Pizza, Chocolate Covered Graham Crackers, or my Easy Mini Brownie Bites!

I love making these S'mores Bars when the boys have their cousins over for sleepovers or movie nights! They are such a yummy sweet treat with all the textures! If you love s'mores try this S'mores Dip!

Recipe Highlights

• All the flavors of s’mores without the campfire
• Soft, chewy texture with gooey marshmallow pockets
• Quick and easy to bake in a 9x9 pan
• Perfect for make-ahead summer desserts

Ingredient Notes

• Graham cracker crumbs: Adds that signature s’mores flavor and a nice cookie texture.
• Flour: Regular all-purpose flour binds everything together.
• Butter: Use unsalted and softened for easy creaming.
• Brown sugar + granulated sugar: The perfect combo for chewiness and sweetness.
• Chocolate chips: Semi-sweet or milk chocolate both work great—use your fave!
• Mini marshmallows: They puff and toast in the oven for that ooey-gooey top.
• Optional: Hershey’s bar pieces and extra graham cracker chunks for a classic look.

How to Make S'mores Bars

• Step 1: Whisk dry ingredients in a bowl.
• Step 2: In another bowl, cream butter and sugar then mix in wet ingredients.
• Step 3: Combine wet and dry ingredients until a dough forms.
• Step 4: Press ⅓ of the dough in the bottom of a 9x9 pan.
• Step 5: Layer chocolate chips then marshmallows and remaining dough on top. Bake until golden.
• Step 6: Remove from oven and place pieces of hershey bar over the top while still warm. Allow to cool, cut and enjoy!

Recipe Variations

• Peanut Butter : Add ¼ cup peanut butter to the dough for a Reese’s vibe.
• Add Nuts: Stir in chopped pecans or walnuts with the chocolate chips.
• Salted Caramel: Drizzle with caramel sauce and a pinch of sea salt before serving.

Recipe Substitutions

• Dairy-free: Use vegan butter and dairy-free chocolate chips.
• Gluten-free: Swap in a gluten-free 1:1 flour blend and certified GF graham crumbs.
• No marshmallows? Use marshmallow fluff swirled on top instead.

Recipe

S'mores Bars

Charlotte Singh-Dhanraj

These S’mores Bars are everything you love about classic campfire s’mores, packed into an easy-to-make, shareable dessert! A graham cracker cookie base, gooey marshmallows, and melty chocolate! 

5 from 1 vote

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 25 minutes mins

Cooling Time 30 minutes mins

Total Time 1 hour hr 10 minutes mins

Course Dessert

Cuisine American

Servings 16

Calories 201 kcal

Ingredients

  

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• 1 cup graham cracker crumbs
• 1 cup all-purpose flour
• ½ teaspoon baking powder
• ¼ teaspoon salt
• ½ cup unsalted butter softened
• ½ cup brown sugar
• ¼ cup granulated sugar
• 1 large egg
• 1 teaspoon vanilla extract
• 1 cup chocolate chips milk or semi-sweet
• 1 heaping cup mini marshmallows
• Optional topping: 1–2 graham crackers broken into pieces
• Optional: 1 full-size Hershey bar broken into rectangles

Instructions

 

• Preheat your oven to 350°F and line a 9x9-inch baking pan with parchment paper, making sure to leave a bit of overhang on the sides for easy removal later.
• In a medium mixing bowl, combine the graham cracker crumbs, flour, baking powder, and salt. Set aside.
• In a separate large bowl, beat the butter, brown sugar, and granulated sugar together until the mixture is light and creamy. Add the egg and vanilla and mix until smooth.
• Gradually stir the dry ingredients into the wet mixture until a soft dough forms.
• Press about two-thirds of the dough evenly into the bottom of your prepared pan. Sprinkle the chocolate chips and mini marshmallows over the top in an even layer.
• Break up the remaining dough into small chunks and scatter them over the filling, letting some of the chocolate and marshmallows show through. If using, press a few broken graham cracker pieces on top for extra texture and crunch.
• Bake for 22–25 minutes, or until the top is golden and the marshmallows look puffed and toasty. For a picture-perfect finish, gently press Hershey bar pieces into the top while the bars are still warm from the oven.
• Let the bars cool completely in the pan. They’ll set up as they cool, making them much easier to slice cleanly into squares.

Notes

• Use parchment paper with overhang for easy removal and cleaner slicing.
• Press Hershey bar pieces in while bars are still warm—but not too hot—to keep their shape.
• Let bars cool completely before slicing—this helps them firm up and hold together.

Nutrition

Calories: 201kcalCarbohydrates: 27gProtein: 2gFat: 10gSaturated Fat: 6gPolyunsaturated Fat: 0.3gMonounsaturated Fat: 2gTrans Fat: 0.2gCholesterol: 25mgSodium: 91mgPotassium: 65mgFiber: 0.4gSugar: 18gVitamin A: 192IUCalcium: 30mgIron: 1mg

Keyword s'mores bars

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I hope you love these Cookie S'mores Bars. If you make this recipe, leave a comment and a rating! I'd love to know how you liked it. Enjoy, xoxo!