If you are on the hunt for a cozy, irresistible treat that combines the nostalgic flavors of campfire s’mores with the chewy goodness of a cookie, you’ve found your new favorite. This S'mores Cookie Bars Recipe brings together buttery graham cracker crumb cookie dough, gooey marshmallow fluff, and melty chocolate layers all in one delightful bar. Perfectly sweet and richly textured, these bars are an absolute crowd-pleaser that will quickly become a staple whenever you want to impress friends and family with minimal fuss.
Ingredients You'll Need
The beauty of this S'mores Cookie Bars Recipe is in the simplicity of its ingredients, each playing a vital role to bring out that classic campfire flavor. From the richness of butter to the crunch of graham crackers, every component is thoughtfully selected to contribute to a harmonious blend of textures and sweetness.
- Butter (½ cup, softened, salted or unsalted): Adds rich creaminess and helps create a tender cookie base.
- Brown sugar (⅓ cup): Provides moisture and a deep caramel note to the dough.
- Granulated sugar (¼ cup): Balances sweetness and contributes to a slight chewiness.
- Egg (1): Binds the ingredients together while adding structure.
- Vanilla extract (1 tsp): Enhances the overall flavor with warm, fragrant undertones.
- All-purpose flour (1 & ½ cups): The main structure of the cookie dough, giving it just the right density.
- Graham crackers (½ cup finely crushed, about 3.5 sheets): Infuses that iconic crunchy, slightly honey-sweet graham flavor throughout the dough.
- Salt (¼ tsp): Balances sweetness and enhances all the flavors.
- Baking soda (¾ tsp): Leavens the dough slightly to keep the bars soft and tender.
- Hershey bars (5 standard bars): The essential chocolate layer that melts perfectly, providing rich chocolate goodness.
- Marshmallow fluff (1 & ½ cups): The gooey, sticky marshmallow that gives this dessert its classic s’mores appeal.
How to Make S'mores Cookie Bars Recipe
Step 1: Prepare Your Pan and Oven
Start by preheating your oven to 350 degrees Fahrenheit. While it warms up, line an 8x8 inch baking pan with parchment paper, ensuring there are some overhangs to make removing the bars a breeze later on. This sets the foundation for evenly baked bars with an easy release.
Step 2: Cream Butter and Sugars
In a large bowl, cream together the softened butter, granulated sugar, and brown sugar until the mixture is smooth and combined. This step is crucial because it creates a light, airy base that will give your cookie bars that perfect chewy texture.
Step 3: Incorporate Egg and Vanilla
Add the egg and vanilla extract to the creamed butter and sugar mixture. Beat these together until fully incorporated; these ingredients bring moisture and flavor depth, making sure the dough isn’t dry.
Step 4: Mix Dry Ingredients
Combine the all-purpose flour, finely crushed graham crackers, salt, and baking soda in a separate bowl. Slowly add this to the wet mixture, mixing just until the flour disappears. Overmixing can toughen your cookie bars, so gentle folding here is key.
Step 5: Layer the Dough
Press about half of the cookie dough evenly into the prepared baking pan to form the base layer. Then, carefully lift this parchment and pop it into the freezer while you line the pan again for the top layer dough. This technique helps you place the top dough layer smoothly later without breaking.
Step 6: Add the Chocolate and Marshmallow Fluff
Once your bottom dough is chilled, arrange the Hershey bars evenly over the surface—feel free to break them to fit perfectly. Next, spread a generous layer of marshmallow fluff on top of the chocolate bars; this gooey layer is truly the heart of the s’mores flavor that makes this recipe special.
Step 7: Add the Top Dough and Bake
Gently flip the chilled top layer of cookie dough over the marshmallow layer, pressing it delicately to cover everything without breaking. Place the pan in the oven and bake for about 25 minutes. Once baked, allow the bars to cool completely before slicing to reveal the luscious layers inside.
How to Serve S'mores Cookie Bars Recipe
Garnishes
For a finishing touch, sprinkle a few mini marshmallows lightly toasted under the broiler or add a dusting of crushed graham crackers on top for extra texture. A drizzle of melted chocolate also amps up the decadence without needing much extra effort.
Side Dishes
Serve these bars alongside a scoop of vanilla ice cream or a cold glass of milk to enhance that warm, gooey sensation. They also pair beautifully with a cup of rich hot chocolate, especially during chilly weather when comfort desserts are a must.
Creative Ways to Present
For parties or potlucks, cut the bars into smaller squares and serve them on a rustic wooden board with extra chocolate chunks and marshmallows scattered around. They also make fantastic layered treats when stacked between sheets of wax paper for picnics or lunchboxes.
Make Ahead and Storage
Storing Leftovers
Store any leftover S'mores Cookie Bars in an airtight container at room temperature for up to 3 days, where they will maintain their soft, chewy goodness. If your kitchen is warm, consider refrigerating to keep the marshmallow layer from becoming too sticky.
Freezing
You can freeze these bars wrapped tightly in plastic wrap and then foil for up to 2 months. When ready to enjoy, thaw them overnight in the fridge and bring to room temperature before serving for best texture.
Reheating
Warm individual bars in the microwave for about 15 seconds or in a preheated oven at 300 degrees Fahrenheit for 5 minutes to reawaken that melty s’mores experience, making each bite just as delightful as fresh out of the oven.
FAQs
Can I use regular marshmallows instead of marshmallow fluff?
While marshmallow fluff works best for its spreadable texture, you can substitute mini marshmallows by layering them on top of the chocolate bars before adding the top dough layer. Just note that they might melt differently and can create pockets of gooey marshmallow rather than an even spread.
Do I have to chill the dough before assembling?
Chilling the bottom dough layer makes it easier to handle and keeps the layers intact when you add the marshmallow and top dough. It helps prevent the bars from mixing together too much while baking.
Can I use milk chocolate instead of Hershey bars?
Absolutely! Milk chocolate works wonderfully and provides a creamy, sweet contrast to the tart marshmallow and crunchy graham crackers. Dark or semi-sweet chocolate would also be delicious if you prefer less sweetness.
How thick should I press the dough layers?
Press the dough fairly evenly about half an inch thick for each layer. This helps balance the bar’s textures and ensures a glassy cross section that holds together when sliced.
What’s the best way to slice the bars?
Use a sharp knife and wait until the bars are completely cooled. Wiping the knife clean between cuts prevents the marshmallow and chocolate from smearing, giving you neat, picture-perfect squares every time.
Final Thoughts
This S'mores Cookie Bars Recipe is a joy to make and impossible not to love. It’s a nostalgic twist on a beloved classic, perfect for anytime you want to treat yourself or wow a crowd with comfort food magic. Trust me, once you try these bars, you’ll find yourself reaching for the ingredients again and again. Go ahead and bake a batch—you won’t regret it!
Print
S'mores Cookie Bars Recipe
- Total Time: 40 minutes
- Yield: 16 servings
Description
Deliciously gooey S'mores cookie bars combining a buttery graham cracker cookie base with melted Hershey chocolate and fluffy marshmallow topping. These bars bake to golden perfection, capturing the classic campfire treat in an easy-to-make dessert perfect for sharing.
Ingredients
Cookie Dough
- ½ cup Butter (softened, salted or unsalted)
- ⅓ cup Brown sugar
- ¼ cup Granulated sugar
- 1 Egg
- 1 tsp Vanilla extract
- 1 ½ cup All-purpose (AP) flour
- ½ cup Graham crackers (finely crushed, about 3.5 sheets)
- ¼ tsp Salt
- ¾ tsp Baking soda
Filling & Topping
- 5 standard Hershey bars
- 1 ½ cup Marshmallow fluff
Instructions
- Preheat Oven and Prepare Pan: Preheat your oven to 350°F (175°C). Line an 8x8 inch baking pan with parchment paper and set it aside to use later.
- Cream Butter and Sugars: In a mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until fully combined and fluffy. Then add the egg and vanilla extract, mixing well to incorporate.
- Add Dry Ingredients: Gradually add the all-purpose flour, finely crushed graham cracker crumbs, salt, and baking soda. Mix gently just until the flour mixture disappears, being careful not to overmix.
- Create Cookie Layers: Press half of the cookie dough evenly into the prepared baking pan. Carefully remove the parchment paper with the dough on it from the pan and place it in the freezer. Re-line the pan with fresh parchment paper and press the remaining dough evenly into the pan.
- Assemble S'mores Layers: Break the Hershey bars into pieces and place them evenly over the dough layer in the pan. Spread the marshmallow fluff evenly over the chocolate bars. Then remove the chilled cookie dough layer from the freezer and gently flip it on top of the marshmallow layer, taking care to keep it intact.
- Bake: Place the assembled cookie bars in the preheated oven and bake for 25 minutes or until golden brown.
- Cool and Serve: Allow the cookie bars to cool completely in the pan before slicing. This ensures clean slices and perfect layers reminiscent of classic s'mores.
Notes
- Freezing the cookie dough layer before assembling helps maintain distinct layers and prevents mixing during flipping.
- You can use either salted or unsalted butter; adjust salt in the recipe accordingly.
- For easier slicing, refrigerate the bars briefly after cooling.
- Substitute Hershey bars with your favorite chocolate for a different flavor twist.
- Store leftovers in an airtight container at room temperature for up to 3 days or refrigerate for extended freshness.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
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