S’mores Cookie Bars Recipe
Introduction
S’mores cookie bars combine the nostalgic flavors of classic campfire treats into an easy-to-make, gooey dessert perfect for any occasion. These bars feature layers of buttery cookie dough, melty marshmallows, and rich chocolate chips with a hint of crunchy graham cracker.

Ingredients
- 1 cup unsalted butter, softened
- 1 cup brown sugar, packed
- 1/2 cup granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- 2 1/2 cups all-purpose flour
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- 1 cup graham cracker crumbs
- 1 cup chocolate chips
- 1 cup mini marshmallows
- Extra chocolate chips and mini marshmallows for topping (to taste)
Instructions
- Step 1: Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking pan or line it with parchment paper for easy removal.
- Step 2: In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy.
- Step 3: Beat in the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
- Step 4: In a separate bowl, whisk together the flour, baking soda, and salt.
- Step 5: Gradually add the dry mixture to the butter mixture, mixing until just combined. Do not overmix.
- Step 6: Gently fold in the graham cracker crumbs and chocolate chips until evenly distributed.
- Step 7: Spread half of the cookie dough mixture into the prepared baking pan, pressing it down evenly.
- Step 8: Sprinkle the mini marshmallows over the cookie layer, then top with the remaining cookie dough. Spread it out gently to cover the marshmallows.
- Step 9: Add additional chocolate chips and mini marshmallows on top for extra gooeyness.
- Step 10: Bake in the preheated oven for 25-30 minutes, or until the top is golden brown and a toothpick inserted into the center comes out clean.
- Step 11: Allow the bars to cool in the pan for about 10 minutes, then lift them out using the parchment paper if used, and let cool completely on a wire rack before slicing into squares.
- Step 12: Enjoy your delicious S’mores Cookie Bars with family and friends!
Tips & Variations
- Use chocolate chunks instead of chips for bigger pockets of melted chocolate.
- Try adding chopped nuts like pecans or walnuts for extra crunch.
- For a gluten-free version, substitute the all-purpose flour with a gluten-free baking blend.
- If you prefer, toast the marshmallows briefly under a broiler after baking to get a caramelized top.
Storage
Store S’mores cookie bars in an airtight container at room temperature for up to 3 days. For longer storage, refrigerate for up to a week or freeze for up to 2 months. Reheat gently in the microwave to melt the chocolate and soften the marshmallows before serving.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use jumbo marshmallows instead of mini ones?
Yes, but chop jumbo marshmallows into smaller pieces to ensure even distribution and melting throughout the bars.
How do I prevent the marshmallows from burning during baking?
Cover the baking pan loosely with foil halfway through baking if the marshmallows start browning too quickly. This helps them soften without burning.
PrintS’mores Cookie Bars Recipe
Delicious and gooey S’mores Cookie Bars combining classic s’mores flavors of graham crackers, chocolate chips, and marshmallows baked into soft, chewy cookie bars perfect for sharing.
- Prep Time: 15 minutes
- Cook Time: 25-30 minutes
- Total Time: 40-45 minutes
- Yield: 16 bars 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
Cookie Base
- 1 cup Unsalted butter, softened
- 1 cup Brown sugar, packed
- 1/2 cup Granulated sugar
- 2 Large eggs
- 1 teaspoon Vanilla extract
- 2 1/2 cups All-purpose flour
- 1 teaspoon Baking soda
- 1/2 teaspoon Salt
- 1 cup Graham cracker crumbs
- 1 cup Chocolate chips
- 1 cup Mini marshmallows
Topping
- Extra chocolate chips, to taste
- Extra mini marshmallows, to taste
Instructions
- Prepare the pan: Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking pan or line it with parchment paper for easy removal.
- Cream butter and sugars: In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy.
- Add eggs and vanilla: Beat in the eggs one at a time, mixing well after each addition. Stir in the vanilla extract until fully incorporated.
- Mix dry ingredients: In a separate bowl, whisk together the all-purpose flour, baking soda, and salt.
- Combine mixtures: Gradually add the dry ingredient mixture to the butter and sugar mixture, mixing just until combined to avoid overmixing.
- Add graham crackers and chocolate chips: Gently fold in the graham cracker crumbs and chocolate chips until evenly distributed throughout the dough.
- Layer dough and marshmallows: Spread half of the cookie dough evenly into the prepared baking pan, pressing it down gently. Sprinkle mini marshmallows over this layer, then cover with the remaining cookie dough, spreading gently to cover the marshmallows.
- Add toppings: Sprinkle extra chocolate chips and mini marshmallows on top for added gooeyness and texture.
- Bake: Place the pan in the preheated oven and bake for 25-30 minutes, or until the top is golden brown and a toothpick inserted in the center comes out clean.
- Cool and serve: Let the bars cool in the pan for about 10 minutes. Then use the parchment paper to lift them out and transfer to a wire rack to cool completely before slicing into squares.
- Enjoy: Serve and enjoy these delicious S’mores Cookie Bars with family and friends!
Notes
- Ensure the butter is softened for better creaming with sugars.
- Do not overmix the dough to keep the bars tender.
- Use parchment paper for easy removal from the pan.
- Feel free to adjust the amount of marshmallows and chocolate chips for desired gooeyness.
- Store bars in an airtight container at room temperature for up to 3 days.
- Can be frozen for up to 1 month; thaw before serving.
Keywords: S’mores, Cookie Bars, Graham Crackers, Chocolate Chips, Marshmallows, Dessert, Baked Treat

