S’mores Cookie Bars Recipe
Introduction
S’mores Cookie Bars combine all the best parts of a campfire treat into an easy-to-make dessert perfect for any occasion. With layers of chocolate, graham crackers, and gooey marshmallows baked into a soft cookie base, these bars are sure to satisfy your sweet tooth.

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 cover with the remaining cookie dough, spreading gently to cover the marshmallows.
- Step 9: Top with extra chocolate chips and mini marshmallows for added gooeyness.
- Step 10: Bake for 25-30 minutes, or until the top is golden brown and a toothpick inserted into the center comes out clean.
- Step 11: Let the bars cool in the pan for about 10 minutes, then lift them out using the parchment paper (if used) and cool completely on a wire rack before slicing.
- Step 12: Serve and enjoy your delicious S’mores Cookie Bars with family and friends!
Tips & Variations
- For a richer flavor, use dark chocolate chips or a mix of milk and white chocolate chips.
- To make these bars gluten-free, substitute the all-purpose flour with a gluten-free flour blend.
- Adding a pinch of cinnamon to the dry ingredients can enhance the flavors and add warmth.
- If mini marshmallows are unavailable, chop regular marshmallows into small pieces instead.
Storage
Store the 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 wrapped tightly for up to 3 months. Reheat briefly in the microwave to soften the marshmallows and chocolate before serving.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use salted butter instead of unsalted?
Yes, you can use salted butter, but reduce or omit any added salt in the recipe to avoid over-salting.
How can I tell when the bars are done baking?
The bars are ready when the top is golden brown and a toothpick inserted into the center comes out clean or with just a few moist crumbs attached.
PrintS’mores Cookie Bars Recipe
These delicious S’mores Cookie Bars combine the beloved flavors of classic s’mores into a rich, chewy bar with layers of buttery cookie dough, crunchy graham cracker crumbs, melted chocolate chips, and gooey mini marshmallows. Perfect for dessert or a sweet snack, these bars bake up golden and are an easy treat to share with family and friends.
- Prep Time: 15 minutes
- Cook Time: 25-30 minutes
- Total Time: 40-45 minutes
- Yield: 12–16 bars 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
Cookies 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
- Extra chocolate chips and mini marshmallows for topping, to taste
Instructions
- Preheat and Prepare 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. This creates a smooth base for the cookie dough.
- Add Eggs and Vanilla: Beat in the eggs one at a time, mixing well after each addition. Stir in the vanilla extract to enhance the flavor of the dough.
- Mix Dry Ingredients: In a separate bowl, whisk together the all-purpose flour, baking soda, and salt ensuring even distribution.
- Combine Wet and Dry: Gradually add the dry flour mixture to the butter mixture, mixing until just combined. Be careful not to overmix to maintain a tender texture.
- Fold in Crumbs and Chips: Gently fold in the graham cracker crumbs and chocolate chips evenly throughout the dough.
- Layer the Dough: Spread half of the cookie dough mixture evenly into the prepared baking pan, pressing down gently to form an even layer.
- Add Marshmallows Layer: Sprinkle the mini marshmallows evenly over the cookie dough layer, creating a gooey middle layer.
- Top with Remaining Dough: Spread the remaining cookie dough gently over the marshmallows to cover them completely.
- Add Final Toppings: Top the bars with additional chocolate chips and mini marshmallows for extra gooey, melty goodness.
- Bake: Bake in the preheated oven for 25-30 minutes or until the top is golden brown and a toothpick inserted in the center comes out clean.
- Cool and Slice: Allow the bars to cool in the pan for about 10 minutes. Then lift them out using the parchment paper (if used) and let them cool completely on a wire rack before slicing into squares.
- Serve and Enjoy: Enjoy your delicious S’mores Cookie Bars with family and friends as a delightful treat or dessert.
Notes
- Do not overmix the dough after adding flour to keep the bars tender.
- Using parchment paper makes it easier to lift the bars out of the pan for slicing.
- For extra gooey bars, add more mini marshmallows on top before baking.
- Store leftover bars in an airtight container at room temperature for up to 3 days or refrigerate.
- These bars can also be frozen for up to 1 month; thaw before serving.
Keywords: S’mores, Cookie Bars, Dessert Bars, Graham Crackers, Chocolate, Marshmallows, Easy Dessert, Baking

