Cozy S’mores Cookie Bars
Nothing says comfort quite like the delightful combination of graham crackers, melted chocolate, and fluffy marshmallows. These S’mores Cookie Bars take me back to sunny afternoons spent around a crackling campfire, surrounded by laughter and the sweet aroma of toasted marshmallows wafting through the air. With each bite, you’re enveloped in a sense of warmth and nostalgia, reminding you of cozy summer nights and cherished moments with family and friends.
Whether you’re craving a comforting dessert for a family gathering or a cozy snack while snuggling up with your favorite book, these bars will surely warm your heart. This is one you’ll definitely want to pin for later!
Why You’ll Love This Recipe
- Easy to Make: With simple ingredients and straightforward steps, you’ll whip these up in no time. Perfect for a quick dessert!
- Crowd-Pleasing: These bars are sure to impress everyone, making them a hit at potlucks or family gatherings.
- Warm & Cozy Flavor: The comforting blend of chocolate, graham cracker, and marshmallow will evoke heartwarming childhood memories.
- Customizable: The recipe allows for various flavors and toppings, letting you bring your creativity into the kitchen.
- Perfect for Sharing: Cut them into squares and share with friends or loved ones for a sweet surprise.
Ingredients You’ll Need for S’mores Cookie Bars
- 1/2 cup Butter (softened, salted or unsalted)
- 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 Graham crackers (finely crushed, about 3.5 sheets, for the cookie dough)
- 1/4 tsp Salt
- 3/4 tsp Baking soda
- 5 Standard Hershey bars
- 1 & 1/2 cups Marshmallow fluff
How to Make S’mores Cookie Bars
- Preheat the oven to 350°F then line an 8×8 inch baking pan with parchment paper and set it aside.
- In a large mixing bowl, cream the softened butter, granulated sugar, and brown sugar until well combined and fluffy.
- Add in the egg and vanilla extract, mixing until everything is incorporated.
- Gradually add the flour, graham cracker crumbs, salt, and baking soda. Mix just until the dry ingredients disappear into the dough.
- Press half of the dough evenly onto the prepared baking sheet. Remove the parchment from the pan and place it in the freezer while you re-line the pan with more parchment paper. Repeat the process with the leftover cookie dough.
- Once out of the freezer, place the chocolate bars over the dough, breaking them apart to cover the entire surface evenly.
- Spread the marshmallow fluff over the chocolate layer, ensuring it’s smoothed out nicely.
- Gently flip the chilled cookie dough layer on top, being careful to keep it intact.
- Bake the cookies in the preheated oven for 25 minutes until they are golden brown and aromatic.
- Allow the bars to cool completely before slicing into them to reveal that beautiful cross-section.
Delicious Variations to Try
- Nutty Delight: Add chopped pecans or walnuts to the cookie dough for a delightful crunch and rich flavor.
- Minty Chocolate: Swap out a couple of Hershey bars for mint chocolate bars for a fresh twist on a classic favorite.
- Nut Butter Swirl: Before baking, swirl a couple of tablespoons of peanut butter or almond butter into the marshmallow fluff for an indulgent twist.
- Zesty Lemon: Incorporate lemon zest into the cookie dough for a refreshing note that balances the sweetness beautifully.
Chef Emma’s Helpful Tips
- Make-Ahead: You can prepare the dough a day in advance and refrigerate it. Just remember to bring it to room temperature before baking!
- Slice with Ease: For clean cuts, run your knife under hot water before slicing the bars.
- Storage Suggestions: Store leftover bars in an airtight container at room temperature for up to 3 days. For longer storage, freeze them for up to a month.
- Ingredient Swaps: Use gluten-free flour instead of all-purpose flour for a gluten-free option that doesn’t compromise on flavor.
What’s Inside – Nutrition Breakdown
- Serving Size: 1 bar
- Calories: 265
- Carbs: 36g
- Sugar: 16g
- Fat: 10g
- Protein: 2g
- Sodium: 125mg
Frequently Asked Questions
Can I make this ahead?
Absolutely! The dough can be prepared a day in advance and stored in the refrigerator until you’re ready to bake.
Can I use different ingredients?
Of course! Feel free to experiment with a variety of chocolate bars or add mix-ins like nuts or dried fruits.
How do I store leftovers?
Store them in an airtight container at room temperature for up to 3 days, or freeze for up to a month for later enjoyment.
How long do they last?
These delicious cookie bars will stay fresh for about 3 days at room temperature. For best taste, enjoy them fresh!
Final Thoughts
These S’mores Cookie Bars are a sweet slice of nostalgia, bringing together delicious layers of chocolate, marshmallow fluff, and graham cracker goodness. Perfect for any occasion, these cookie bars will bring a smile to your face and warmth to your heart. Save this S’mores Cookie Bars recipe to your dessert board so it’s ready when you need a cozy treat!

Cozy S’mores Cookie Bars
- Total Time: 40 minutes
- Yield: 16 servings 1x
- Diet: Vegetarian
Description
Enjoy the delightful combination of graham crackers, melted chocolate, and fluffy marshmallows in these cozy S’mores Cookie Bars, perfect for any gathering or a comforting snack.
Ingredients
- 1/2 cup Butter (softened)
- 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 Graham crackers (finely crushed)
- 1/4 tsp Salt
- 3/4 tsp Baking soda
- 5 Standard Hershey bars
- 1 1/2 cups Marshmallow fluff
Instructions
- Preheat the oven to 350°F then line an 8×8 inch baking pan with parchment paper and set it aside.
- Cream the softened butter, granulated sugar, and brown sugar until well combined and fluffy.
- Add the egg and vanilla extract, mixing until everything is incorporated.
- Gradually add the flour, graham cracker crumbs, salt, and baking soda. Mix just until the dry ingredients disappear into the dough.
- Press half of the dough evenly onto the prepared baking sheet. Remove the parchment from the pan and place it in the freezer while you re-line the pan with more parchment paper. Repeat with the leftover cookie dough.
- Place the chocolate bars over the dough, breaking them apart to cover the entire surface evenly.
- Spread the marshmallow fluff over the chocolate layer, ensuring it’s smoothed out nicely.
- Flip the chilled cookie dough layer on top, being careful to keep it intact.
- Bake the cookies in the preheated oven for 25 minutes until they are golden brown and aromatic.
- Allow the bars to cool completely before slicing into them.
Notes
For clean cuts, run your knife under hot water before slicing the bars. Store leftovers in an airtight container for up to 3 days or freeze for up to a month.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 bar
- Calories: 265
- Sugar: 16g
- Sodium: 125mg
- Fat: 10g
- Saturated Fat: 5g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 36g
- Fiber: 1g
- Protein: 2g
- Cholesterol: 30mg






