S’mores Cookie Bars Recipe
Introduction
These S’mores Cookie Bars bring the classic campfire treat straight to your kitchen in an easy-to-make dessert. With layers of graham cracker-flavored cookie dough, melted chocolate, and gooey marshmallow fluff, they’re perfect for satisfying your sweet tooth anytime.

Ingredients
- 1/2 cup softened butter
- 1/3 cup brown sugar
- 1/4 cup granulated sugar
- 1 egg
- 1 tsp vanilla extract
- 1 1/2 cups all-purpose flour
- 1/2 cup finely crushed graham crackers (about 3.5 sheets)
- 5 standard Hershey bars
- 1 1/2 cups marshmallow fluff
Instructions
- Step 1: Preheat your oven to 350°F and line an 8×8 inch baking pan with parchment paper.
- Step 2: In a mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until fluffy. Beat in the egg and vanilla extract.
- Step 3: Gradually add the flour, crushed graham crackers, salt, and baking soda; mix until just combined.
- Step 4: Press half of the dough evenly into the prepared baking pan and freeze for about 15 minutes.
- Step 5: Layer broken pieces of Hershey bars over the chilled dough, then spread the marshmallow fluff evenly on top.
- Step 6: Flip the remaining chilled dough layer on top to cover the marshmallow layer. Bake for approximately 25 minutes or until golden brown.
- Step 7: Allow the bars to cool completely before slicing into squares and serving.
Tips & Variations
- For an extra gooey top, broil the bars for 1-2 minutes after baking to toast the marshmallow fluff slightly.
- Substitute dark chocolate or milk chocolate bars for the Hershey bars to change the flavor profile.
- Use crunchy peanut butter in the dough for a nutty twist on the classic s’mores flavor.
Storage
Store the 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 soften before serving.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use mini marshmallows instead of marshmallow fluff?
Yes, you can substitute mini marshmallows. Spread a layer of them over the chocolate and bake until melted and gooey, but marshmallow fluff provides a smoother, creamier texture.
Do I need to freeze the dough before baking?
Freezing the dough helps firm up the bottom layer so that the layers stay distinct and the bars hold their shape better during baking.
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S’mores Cookie Bars Recipe
- Total Time: 40 minutes
- Yield: 16 bars 1x
Description
These S’mores Cookie Bars combine the nostalgic flavors of classic s’mores into a deliciously gooey, chewy dessert. Featuring layers of buttery cookie dough, melted chocolate, and fluffy marshmallow fluff, these bars are perfect for satisfying your sweet tooth with a delightful twist on a campfire favorite.
Ingredients
Cookie Dough
- 1/2 cup softened butter
- 1/3 cup brown sugar
- 1/4 cup granulated sugar
- 1 egg
- 1 tsp vanilla extract
- 1 & 1/2 cups all-purpose flour
- 1/2 cup finely crushed graham crackers (about 3.5 sheets)
- 1/4 tsp salt
- 1/4 tsp baking soda
Layers
- 5 standard Hershey bars, broken into pieces
- 1 & 1/2 cups marshmallow fluff
Instructions
- Preheat and Prepare Pan: Preheat your oven to 350°F (175°C) and line an 8×8-inch baking pan with parchment paper to prevent sticking and make removal easier.
- Cream Butter and Sugars: In a mixing bowl, beat the softened butter, brown sugar, and granulated sugar together until the mixture is light and fluffy, providing a tender texture to the bars. Then, add the egg and vanilla extract and mix until fully incorporated.
- Incorporate Dry Ingredients: Gradually add the all-purpose flour, finely crushed graham crackers, salt, and baking soda to the wet mixture. Stir gently until just combined to avoid overworking the dough which can make the bars tough.
- Chill Base Layer: Press half of the cookie dough evenly into the prepared baking pan. Place the pan in the freezer and chill for about 15 minutes to make layering easier and maintain structure when adding the toppings.
- Add Chocolate and Marshmallow Layers: Layer broken pieces of Hershey bars evenly over the chilled dough base. Then, spread the marshmallow fluff evenly on top of the chocolate layer, creating the gooey middle of these bars.
- Top and Bake: Carefully flip the remaining chilled cookie dough layer on top of the marshmallow fluff and chocolate. Bake in the preheated oven for approximately 25 minutes, or until the cookie crust is golden brown and set.
- Cool and Serve: Allow the bars to cool completely in the pan to let them set fully. Once cool, slice into squares and serve for a delightful treat.
Notes
- Using parchment paper makes removing the bars easier and cleaner.
- Freezing the dough before layering helps keep the layers distinct and prevents mixing.
- For a gooier texture, slightly underbake and let cool to set.
- You can substitute Hershey bars with any milk chocolate or dark chocolate of your preference.
- Store leftovers in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Keywords: s’mores, cookie bars, dessert bars, marshmallow fluff, chocolate bars, graham cracker dessert, easy dessert, campfire treat

