There’s something undeniably nostalgic about s’mores. Whether it’s gathered around a campfire or indulging in a warm, gooey treat at home, the combination of graham crackers, melted chocolate, and toasted marshmallows never fails to satisfy. But what if you could enjoy that same comforting flavor without the hassle of a campfire? Enter S’mores Cookie Bars—an easy, no-fire-needed version of the classic treat that brings all the delicious, melty goodness of s’mores right to your oven. The best part? They’re simple to make, require minimal ingredients, and are perfect for busy days when you need a quick dessert fix.
These bars are a perfect treat for all occasions. They’re great for family gatherings, potlucks, or as a fun dessert for kids. Plus, with their rich layers of graham crackers, cookie dough, marshmallows, and gooey chocolate, you’re bound to please everyone—whether they’re fans of s’mores or cookie lovers.

Table of Contents
Why This Recipe is Special
S’mores Cookie Bars are a fantastic twist on the traditional s’mores. Unlike the classic version, there’s no fire required, and the ingredients come together quickly, making it an easy dessert for beginners. The combination of crispy graham crackers, soft cookie dough, and toasted marshmallows gives these bars a perfect balance of crunch and melt-in-your-mouth goodness.
Not only are these bars delicious, but they also hold up well in various storage conditions, meaning you can make them ahead of time for parties or snacks. The versatility in texture makes them enjoyable warm out of the oven or at room temperature, and they store well for later indulgence. Whether you’re preparing a batch for a family event or just want a treat on hand, this recipe promises to deliver both flavor and convenience.
Ingredients and Preparation
For this recipe, you’ll need the following ingredients:
- Graham crackers: These create the perfect foundation for your bars. They bring that signature crunch and a hint of sweetness to mimic the traditional s’mores crust.
- Unsalted butter: This provides the rich flavor needed for the cookie dough base. Be sure to soften it beforehand for smooth mixing.
- Granulated sugar and light brown sugar: Both sugars add to the sweetness and moisture of the cookie dough, giving it that irresistible chewy texture.
- Eggs and vanilla extract: Essential for binding the dough together and adding a rich, warm flavor.
- All-purpose flour: This forms the base of the cookie dough, giving it structure and chewiness.
- Salt and baking soda: These are key to balancing the sweetness of the dough and ensuring a light texture.
- Mini marshmallows: The heart of the s’mores flavor! They add that gooey, chewy texture throughout the bars.
- Semi-sweet chocolate chips: These are sprinkled throughout the dough for rich, melty pockets of chocolate.
- Hershey’s Milk Chocolate Bars: To top off the bars, break these into pieces for that classic s’mores chocolate layer.
Ingredient Substitutions:
- If you want a slightly different flavor, you can swap the mini marshmallows for larger marshmallows, though you may need to cut them into smaller pieces.
- For a gluten-free version, you can try using gluten-free graham crackers and flour.
Step-by-Step Instructions
Step 1: Preheat your oven to 375°F (190°C). Line a 13×9-inch baking pan with parchment paper, leaving about a 2-inch overhang on the sides. This will make it easier to remove the bars once they’re baked.
Step 2: Arrange the graham crackers in a single layer at the bottom of the pan, breaking them as needed to fit the pan. This forms your base layer, giving the bars their crunchy foundation.
Step 3: In a large mixing bowl, cream together the butter, granulated sugar, and brown sugar using an electric mixer. Beat until the mixture is light and fluffy, about 2-3 minutes.
Step 4: Add the eggs and vanilla extract to the butter mixture, and mix until fully incorporated.
Step 5: In a separate bowl, whisk together the flour, salt, and baking soda. Gradually add this dry mixture to the wet ingredients, mixing until just combined. Be careful not to overmix.
Step 6: Fold in the chocolate chips and mini marshmallows into the dough.
Step 7: Spread the dough evenly over the graham crackers in the pan, pressing it down gently. You can add a few extra marshmallows on top if you like your s’mores extra gooey.
Step 8: Bake the bars 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. If the top starts to brown too quickly, cover the pan with foil and continue baking.
Step 9: As soon as you remove the bars from the oven, place the broken Hershey’s chocolate pieces on top while the bars are still warm. The heat will melt the chocolate into a gooey layer on top.
Step 10: Allow the bars to cool in the pan for 20-30 minutes before lifting them out using the parchment paper overhang. Slice into squares and enjoy!
Beginner Tips and Notes
- Tip for even baking: Use a metal pan rather than a glass pan. Metal pans conduct heat more evenly, which helps the bars bake properly without burning on the edges.
- How to prevent overbaking: These bars are best when slightly underbaked, so be sure to watch them closely during the last few minutes of baking. The center should be soft but not raw.
- Troubleshooting overbaking or underbaking: If your bars are overbaked, they’ll be drier. If they’re underbaked, they’ll be too gooey. The key is to check with a toothpick at the 25-minute mark and judge the center’s doneness carefully.
- How to prepare in advance: These bars store well at room temperature in an airtight container. If you want to ensure the chocolate sets, you can refrigerate them for a firmer texture.
Serving Suggestions
These S’mores Cookie Bars are perfect on their own, but you can pair them with a variety of sides or sauces to take them to the next level. Consider serving them with a scoop of vanilla ice cream or a drizzle of salted caramel sauce to complement their richness. A glass of cold milk or a cup of hot cocoa makes the ultimate pairing for this dessert.
For storing leftovers, keep the bars in an airtight container at room temperature for up to 3-4 days. Alternatively, refrigerate them to firm up the chocolate topping.
Conclusion
S’mores Cookie Bars are a fun, easy, and delicious way to enjoy the classic flavors of s’mores without the need for a campfire. Whether you’re serving them at a gathering or enjoying them as a treat for yourself, these bars are sure to become a new favorite in your dessert rotation. Don’t forget to try them warm out of the oven for the ultimate gooey experience!
FAQ About S’mores Cookie Bars
Can I make S’mores Cookie Bars ahead of time?
Yes, you can! These bars store well at room temperature for 3-4 days in an airtight container. For a firmer texture, refrigerate them after they’ve cooled completely.
Can I use a different type of chocolate for the topping?
Absolutely! While Hershey’s milk chocolate is traditional, you can use dark chocolate or even white chocolate if you prefer a different flavor profile. Just make sure the chocolate is broken into pieces for easy melting.
How can I tell when the S’mores Cookie Bars are done baking?
The bars are done when the top is golden brown, and a toothpick inserted into the center comes out clean. If the top starts to brown too quickly, cover the bars with foil and continue baking until fully cooked.
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S’mores Cookie Bars
- Total Time: 40 minutes
- Yield: 16 bars 1x
Description
S’mores Cookie Bars are a delicious, easy-to-make dessert that combines graham crackers, cookie dough with marshmallows, and Hershey’s chocolate, perfect for any occasion.
Ingredients
- 7–8 graham crackers (full sheets/unbroken rectangles)
- 1 cup unsalted butter (2 sticks), room temperature
- ¾ cup granulated sugar
- ¾ cup light brown sugar, gently packed
- 2 large eggs
- 2 tsp vanilla extract
- 3 cups all-purpose flour (stir, spoon, & level)
- ¾ tsp salt
- ¾ tsp baking soda
- ½ cup semi-sweet chocolate chips
- 1 cup mini marshmallows
- 2 regular sized Hershey’s Milk Chocolate Bars (1.55oz/43g bars), broken into squares
Instructions
- Preheat the oven to 375°F (190°C). Line a 13×9-inch baking pan with parchment paper, leaving about a 2-inch overhang on the sides.
- Arrange the graham crackers in a single layer at the bottom of the pan, breaking them as needed to fit the pan.
- In a large mixing bowl, cream together the butter, granulated sugar, and brown sugar using an electric mixer. Beat until the mixture is light and fluffy, about 2-3 minutes.
- Add the eggs and vanilla extract to the butter mixture, and mix until fully incorporated.
- In a separate bowl, whisk together the flour, salt, and baking soda. Gradually add this dry mixture to the wet ingredients, mixing until just combined.
- Fold in the chocolate chips and mini marshmallows into the dough.
- Spread the dough evenly over the graham crackers in the pan, pressing it down gently. You can add a few extra marshmallows on top if you like your s’mores extra gooey.
- Bake the bars 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. If the top starts to brown too quickly, cover the pan with foil and continue baking.
- As soon as you remove the bars from the oven, place the broken Hershey’s chocolate pieces on top while the bars are still warm. The heat will melt the chocolate into a gooey layer on top.
- Allow the bars to cool in the pan for 20-30 minutes before lifting them out using the parchment paper overhang. Slice into squares and enjoy!
Notes
- Use a metal pan for more even baking rather than a glass pan.
- If the bars start to brown too quickly, cover with foil and continue baking until done.
- If you prefer firmer chocolate, refrigerate the bars after cooling.
- These bars are best slightly underbaked to keep them gooey in the center.
- You can store them at room temperature for up to 3-4 days in an airtight container.
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 bar
- Calories: 245
- Sugar: 18g
- Sodium: 145mg
- Fat: 11g
- Saturated Fat: 7g
- Unsaturated Fat: 4g
- Trans Fat: 0.3g
- Carbohydrates: 34g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 34mg
