As a child, summer nights were often spent gathered around a crackling campfire, the air filled with laughter and the sweet aroma of melting chocolate and toasted marshmallows. Those moments, with sticky fingers and gooey smiles, inspired my love for cooking and the joy of recreating those cherished memories at home. Today, I’m excited to share my recipe for Decadent S’mores Cookie Bars, a delightful twist on the classic campfire treat that brings all the nostalgia and flavor without the need for a fire pit.

Imagine biting into a warm, chewy cookie bar, where the rich chocolate chips melt into a sea of fluffy mini marshmallows, all enveloped in a buttery graham cracker crust. The texture is a perfect balance of soft and crunchy, with each bite transporting you back to those carefree summer evenings. These Decadent S’mores Cookie Bars are not just a dessert; they are a celebration of sweet indulgence that can be enjoyed any time of the year, whether you’re hosting a family gathering or simply treating yourself after a long day.
What You’ll Find Here
What is Decadent S’mores Cookie Bars?
The origins of s’mores date back to the early 20th century, with the first recorded recipe appearing in a Girl Scouts publication in 1927. These delightful treats, made of graham crackers, chocolate, and toasted marshmallows, quickly became a staple of American camping traditions. They symbolize the joy of gathering around a campfire, sharing stories, and indulging in sweet treats under the stars. The name “s’mores” is a contraction of “some more,” reflecting the irresistible nature of these gooey delights that leave you wanting more.
Now, let’s talk about how my Decadent S’mores Cookie Bars take this beloved campfire treat and give it a modern twist. By combining the classic elements of s’mores into a cookie bar format, I’ve created a dessert that’s not only easy to make but also perfect for sharing. Imagine the same rich flavors of chocolate and marshmallow, but nestled within a soft, chewy cookie base that’s infused with graham cracker crumbs. Each bite is a sweet indulgence that captures the essence of those nostalgic campfire nights, all while being conveniently baked in a single pan.
These cookie bars are more than just a dessert; they are a celebration of American culture and the simple pleasures of life. Whether you’re enjoying them at a summer barbecue or cozying up with your family on a chilly evening, Decadent S’mores Cookie Bars bring the warmth of a campfire right into your kitchen. So, gather your loved ones and prepare to indulge in this delightful twist on a classic favorite!
Why You’ll Love This Decadent S’mores Cookie Bars
There are countless reasons to fall in love with these Decadent S’mores Cookie Bars. Here are just a few that make them a must-try:
- Easy preparation and baking time: With just 15 minutes of prep and 30 minutes in the oven, you can whip up these delicious bars in no time, making them perfect for busy weeknights.
- Rich, gooey flavors: Each bite is a delightful explosion of chocolate and marshmallow, satisfying even the most intense sweet cravings.
- Healthier alternative: These cookie bars offer portion control compared to traditional s’mores, allowing you to indulge without overdoing it.
- Family-friendly dessert: This recipe is a fantastic way to bring everyone together, whether you’re baking with kids or sharing with friends at a gathering.
Who It’s For
These Decadent S’mores Cookie Bars are perfect for busy families looking for a quick and satisfying dessert, dessert lovers who crave a sweet treat, and anyone seeking a nostalgic reminder of campfire nights. Whether you’re a novice baker or a seasoned pro, this recipe is designed to be approachable and enjoyable for all.
When to Cook It
These cookie bars are versatile enough to be enjoyed on various occasions. They’re ideal for summer gatherings, birthday parties, or cozy family nights when you want to create a warm, inviting atmosphere. Imagine serving these bars at a picnic or enjoying them while watching a movie on a chilly evening—pure bliss!

How to Make the Perfect Decadent S’mores Cookie Bars
Ingredients
To create these Decadent S’mores Cookie Bars, you’ll need a handful of simple ingredients that come together to evoke the essence of a campfire treat. Here’s what you’ll need:
- 1 cup unsalted butter, softened: This adds richness and helps create a soft, chewy texture.
- 1 cup brown sugar: For that deep, caramel-like flavor.
- 1/2 cup granulated sugar: Balances the sweetness and contributes to the cookie’s structure.
- 2 large eggs: Essential for binding the ingredients together.
- 1 teaspoon vanilla extract: Adds warmth and depth to the flavor.
- 2 1/2 cups all-purpose flour: The base of your cookie bars.
- 1 teaspoon baking soda: Helps the bars rise and become fluffy.
- 1/2 teaspoon salt: Enhances the sweetness and balances flavors.
- 1 cup chocolate chips: For that gooey, melty goodness.
- 1 cup mini marshmallows: The star of the show, providing that classic s’mores experience.
- 1 cup graham cracker crumbs: Adds crunch and the signature s’mores flavor.
If you’re looking for alternatives, consider using gluten-free flour for a gluten-free version or swapping in dark chocolate chips for a richer taste. You can even add chopped nuts for an extra crunch!
Step-by-Step Instructions
Now that you have your ingredients ready, let’s dive into the baking process. Follow these steps to ensure your Decadent S’mores Cookie Bars turn out perfectly:
- Preheat your oven to 350°F (175°C) and grease a 9×13 inch baking pan.
- In a large bowl, cream together the softened butter, brown sugar, and granulated sugar until smooth and fluffy.
- Add the eggs and vanilla extract, mixing until well combined.
- In a separate bowl, whisk together the flour, baking soda, and salt.
- Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
- Fold in the chocolate chips, mini marshmallows, and graham cracker crumbs.
- Spread the cookie dough evenly in the prepared baking pan.
- Bake for 25-30 minutes or until the edges are golden brown and the center is set.
- Allow to cool before cutting into bars and serving.
As you bake, the aroma of melting chocolate and toasted marshmallows will fill your kitchen, transporting you back to those cherished campfire nights.
For People with Diabetes: Sugar Substitutes
If you’re looking to enjoy these Decadent S’mores Cookie Bars while managing sugar intake, consider using suitable sugar substitutes. Here are a few options:
- Stevia: A natural sweetener that can replace sugar without the calories.
- Erythritol: A sugar alcohol that has minimal impact on blood sugar levels.
- Monk fruit sweetener: Another natural option that provides sweetness without calories.
It’s best to avoid honey and maple syrup, as they can spike blood sugar levels. Always check the conversion ratios when substituting to ensure your cookie bars turn out just right!
Tools You’ll Need
Before you start baking your Decadent S’mores Cookie Bars, gather the following essential tools to make the process smooth and enjoyable:
- 9×13 inch baking pan: This is the perfect size for baking your cookie bars. If you don’t have one, a similar-sized dish will work, but adjust the baking time as needed.
- Mixing bowls: A large bowl for mixing the wet ingredients and a medium bowl for the dry ingredients. If you’re short on bowls, you can use one bowl and just wash it in between steps.
- Electric mixer or whisk: An electric mixer makes creaming the butter and sugars a breeze, but a good old-fashioned whisk will do just fine if you prefer a workout!
- Rubber spatula: This is essential for folding in the chocolate chips, marshmallows, and graham cracker crumbs without overmixing.
- Measuring cups and spoons: Accurate measurements are key to achieving the perfect texture in your cookie bars.
- Parchment paper (optional): Lining your baking pan with parchment paper can make it easier to lift the bars out once they’re baked, ensuring clean cuts.
- Cooling rack: Allowing your cookie bars to cool on a rack helps prevent sogginess and keeps them from steaming in the pan.
With these tools at your disposal, you’ll be well-equipped to create your Decadent S’mores Cookie Bars with ease and confidence!

Tips from Well-Known Chefs
When it comes to baking the perfect Decadent S’mores Cookie Bars, even the pros have some invaluable tips to share. Here are a few chef-approved hacks that will elevate your cookie bars to a whole new level:
- Chill the Dough: Many chefs recommend chilling your cookie dough for at least 30 minutes before baking. This helps the flavors meld together and results in a thicker, chewier bar. Plus, it prevents the bars from spreading too much in the oven!
- Use Quality Chocolate: The type of chocolate you choose can make a significant difference in flavor. Opt for high-quality chocolate chips or even chopped chocolate bars for a richer taste. Dark chocolate can add a sophisticated twist to your Decadent S’mores Cookie Bars.
- Don’t Overmix: When combining the wet and dry ingredients, mix until just combined. Overmixing can lead to tough cookie bars. Remember, a little bit of flour streaks is perfectly fine!
- Layering for Gooeyness: For an extra gooey texture, consider layering some mini marshmallows and chocolate chips on top of the cookie dough before baking. This creates a deliciously melty topping that enhances the s’mores experience.
- Let Them Cool: After baking, allow your cookie bars to cool in the pan for at least 10-15 minutes before cutting. This helps them set and makes for cleaner, more appealing slices.
By incorporating these tips from seasoned chefs, you’ll be well on your way to creating Decadent S’mores Cookie Bars that are not only delicious but also visually stunning. Happy baking!
Delicious Variations to Customize Your Treat
One of the best things about Decadent S’mores Cookie Bars is their versatility. You can easily customize them to suit your taste preferences or to experiment with new flavors. Here are some delightful variations to consider:
- Peanut Butter Swirl: For a nutty twist, add 1/2 cup of creamy peanut butter to the wet ingredients. You can also swirl in some extra peanut butter on top before baking for a beautiful marbled effect.
- Different Chocolate Types: While semi-sweet chocolate chips are classic, try using dark chocolate, milk chocolate, or even white chocolate chips for a unique flavor profile. You can mix and match to create your perfect chocolate blend!
- Nutty Crunch: Add 1/2 cup of chopped nuts, such as walnuts or pecans, to the dough for an added crunch and depth of flavor. This not only enhances the texture but also adds a delightful nutty aroma.
- Minty Fresh: For a refreshing twist, incorporate 1/2 teaspoon of peppermint extract into the wet ingredients. You can also add crushed peppermint candies on top before baking for a festive touch.
- Fruit Infusion: Consider folding in 1/2 cup of dried fruits like cranberries or cherries for a sweet and tart contrast to the rich chocolate and marshmallows. Fresh fruit, like sliced strawberries, can also be layered on top before baking.
- Spiced Up: Add a pinch of cinnamon or a dash of cayenne pepper to the dough for a warm, spicy kick. This unexpected flavor can elevate your Decadent S’mores Cookie Bars to a whole new level!
These variations not only allow you to personalize your Decadent S’mores Cookie Bars but also make them a fun project to share with family and friends. Get creative and let your taste buds guide you on this delicious journey!
Top Tips for Perfecting Your Decadent S’mores Cookie Bars
Creating the ultimate Decadent S’mores Cookie Bars is an art that combines technique with a touch of love. Here are some expert tips and cultural secrets to help you achieve that perfect balance of gooeyness and crunch:
- Use Room Temperature Ingredients: Ensure your butter and eggs are at room temperature before mixing. This helps create a smoother batter and ensures even baking, resulting in a soft, chewy texture.
- Don’t Skip the Chilling: After mixing your dough, consider chilling it for at least 30 minutes. This step helps prevent the bars from spreading too much in the oven, leading to thicker, more satisfying cookie bars.
- Layer Wisely: For that extra gooeyness, layer some mini marshmallows and chocolate chips on top of the cookie dough before baking. This creates a melty topping that enhances the s’mores experience and adds visual appeal.
- Check for Doneness: Keep an eye on your cookie bars as they bake. The edges should be golden brown, while the center may look slightly underbaked. It will continue to set as it cools, ensuring a soft and chewy interior.
- Let Them Rest: After baking, allow your Decadent S’mores Cookie Bars to cool in the pan for at least 15 minutes before cutting. This resting period helps the bars firm up, making them easier to slice and enhancing their texture.
- Experiment with Flavors: Don’t hesitate to infuse your cookie bars with different flavors. Adding a pinch of sea salt on top before baking can enhance the sweetness and create a delightful contrast with the chocolate.
- Store Properly: To maintain freshness, store your cookie bars in an airtight container at room temperature. If you want to keep them for longer, consider freezing them. Just make sure to wrap them tightly to prevent freezer burn.
By following these tips, you’ll be well on your way to mastering the art of Decadent S’mores Cookie Bars. Each bite will be a perfect blend of gooey marshmallow, rich chocolate, and crunchy graham cracker goodness, bringing the joy of campfire treats right into your home!
Storing and Reheating Tips
Once you’ve baked your Decadent S’mores Cookie Bars and indulged in their gooey goodness, you might find yourself with some delicious leftovers. Here’s how to store and reheat them to maintain their freshness and flavor:
Storing Leftovers
- Cool Completely: Before storing, allow your cookie bars to cool completely in the pan. This prevents condensation from forming, which can make them soggy.
- Airtight Container: Place the cooled cookie bars in an airtight container. This will help keep them fresh and prevent them from drying out. If you have a large batch, consider cutting them into individual bars for easy access.
- Room Temperature or Refrigeration: You can store your cookie bars at room temperature for up to 3 days. If you want to keep them longer, refrigerate them for up to a week. Just be aware that refrigeration may slightly alter the texture, making them a bit firmer.
- Freezing for Later: For longer storage, freeze your cookie bars. Wrap them tightly in plastic wrap and then place them in a freezer-safe bag or container. They can be frozen for up to 3 months. When you’re ready to enjoy them, simply thaw them in the refrigerator overnight.
Reheating Tips
To bring back that fresh-baked warmth and gooey texture, reheating your Decadent S’mores Cookie Bars is a great option:
- Microwave Method: Place a single bar on a microwave-safe plate and heat for about 10-15 seconds. This will warm it up and soften the chocolate and marshmallows, making it feel freshly baked.
- Oven Method: For a larger batch, preheat your oven to 350°F (175°C). Place the cookie bars on a baking sheet and cover them loosely with aluminum foil to prevent over-browning. Heat for about 10 minutes, or until warmed through.
- Enjoy Warm: Serve your reheated cookie bars with a scoop of vanilla ice cream or a drizzle of chocolate sauce for an extra indulgent treat!
By following these storing and reheating tips, you can savor your Decadent S’mores Cookie Bars long after they come out of the oven, keeping the campfire spirit alive in every bite!
Helpful Notes
As you embark on your journey to create Decadent S’mores Cookie Bars, here are some helpful notes to ensure your baking experience is smooth and enjoyable:
Ingredient Prep
- Butter: Make sure your unsalted butter is softened to room temperature. This allows for easier creaming with the sugars, resulting in a light and fluffy texture.
- Eggs: Using room temperature eggs helps them incorporate better into the batter, leading to a more uniform texture in your cookie bars.
- Graham Cracker Crumbs: You can easily make your own by crushing whole graham crackers in a food processor or placing them in a zip-top bag and rolling over them with a rolling pin.
Potential Substitutions
- Flour: If you need a gluten-free option, substitute all-purpose flour with a 1:1 gluten-free baking blend. Just ensure it contains xanthan gum for the best results.
- Chocolate Chips: Feel free to mix and match chocolate types! Dark chocolate, milk chocolate, or even white chocolate can be used based on your preference.
- Mini Marshmallows: If you can’t find mini marshmallows, you can cut regular marshmallows into smaller pieces. Just be sure to adjust the quantity accordingly.
Cultural References
S’mores have a rich history in American culture, often associated with camping and outdoor gatherings. The tradition of making s’mores dates back to the early 1900s, and they have become a beloved symbol of summer nights spent around the campfire. By making Decadent S’mores Cookie Bars, you’re not just baking a dessert; you’re embracing a piece of Americana that brings people together, evoking memories of laughter, stories, and the warmth of shared experiences.
With these helpful notes in mind, you’ll be well-prepared to create your Decadent S’mores Cookie Bars and share the joy of this delightful treat with family and friends!
Common Mistakes to Avoid
When baking your Decadent S’mores Cookie Bars, it’s easy to make a few missteps that can affect the final result. Here are some common pitfalls to watch out for:
- Overmixing the Dough: Mixing too much can lead to tough cookie bars. Aim to mix until just combined for a soft, chewy texture.
- Not Greasing the Pan Properly: Failing to grease your baking pan can result in sticky bars that are difficult to remove. Use cooking spray or line the pan with parchment paper for easy lifting.
- Skipping the Cooling Time: Cutting into the bars too soon can cause them to crumble. Allow them to cool in the pan for at least 15 minutes before slicing.
- Using Cold Ingredients: Cold butter and eggs can lead to uneven mixing. Make sure your butter is softened and your eggs are at room temperature for the best results.
- Not Measuring Ingredients Accurately: Baking is a science, and precise measurements are crucial. Use measuring cups and spoons for accuracy to ensure your cookie bars turn out perfectly.
- Ignoring Oven Temperature: Every oven is different. Make sure to preheat your oven and consider using an oven thermometer to ensure accurate baking temperatures.
- Overbaking: Keep an eye on your cookie bars as they bake. They should be golden brown around the edges but slightly soft in the center. They will continue to set as they cool.
By avoiding these common mistakes, you’ll be well on your way to creating delicious Decadent S’mores Cookie Bars that are sure to impress!
FAQs About Decadent S’mores Cookie Bars
Can I make Decadent S’mores Cookie Bars ahead of time?
Yes, you can prepare the dough in advance and refrigerate it for up to 24 hours before baking. This allows the flavors to meld beautifully, resulting in even tastier cookie bars!
Are Decadent S’mores Cookie Bars suitable for gluten-free diets?
It depends. You can easily make these cookie bars gluten-free by substituting all-purpose flour with a 1:1 gluten-free baking blend. Just ensure it contains xanthan gum for the best results.
Can I use regular marshmallows instead of mini marshmallows?
Yes, you can use regular marshmallows! Just cut them into smaller pieces to mimic the size of mini marshmallows, and adjust the quantity accordingly for the best texture.
How should I store leftover Decadent S’mores Cookie Bars?
Yes, store your leftover cookie bars in an airtight container at room temperature for up to 3 days. For longer storage, you can freeze them for up to 3 months.
Can I customize the flavors in my Decadent S’mores Cookie Bars?
Yes! Feel free to experiment with different types of chocolate, add nuts, or even swirl in peanut butter for a unique twist on this classic treat.
Conclusion: Final Thoughts on Decadent S’mores Cookie Bars
As I reflect on the joy of creating these Decadent S’mores Cookie Bars, I can’t help but feel a warm sense of nostalgia wash over me. Each bite is not just a delicious treat; it’s a reminder of those carefree summer nights spent around the campfire, sharing stories and laughter with loved ones. The combination of gooey marshmallows, rich chocolate, and crunchy graham crackers brings back memories that are as sweet as the bars themselves.
I encourage you to try this recipe and make it your own. Whether you stick to the classic version or experiment with your favorite flavors, these cookie bars are sure to become a cherished addition to your dessert repertoire. I would love to hear about your experiences—what variations did you try? Did you add a special twist that made them uniquely yours? Please share your thoughts and stories in the comments below. Let’s celebrate the joy of baking together and keep the spirit of those campfire nights alive, one delicious bar at a time!
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Decadent S’mores Cookie Bars
- Total Time: 45 minutes
- Yield: 24 bars 1x
- Diet: Vegetarian
Description
Indulge in a sweet campfire treat at home with these delicious s’mores cookie bars.
Ingredients
- 1 cup unsalted butter, softened
- 1 cup brown sugar
- 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 chocolate chips
- 1 cup mini marshmallows
- 1 cup graham cracker crumbs
Instructions
- Preheat your oven to 350°F (175°C) and grease a 9×13 inch baking pan.
- In a large bowl, cream together the softened butter, brown sugar, and granulated sugar until smooth.
- Add the eggs and vanilla extract, mixing until well combined.
- In a separate bowl, whisk together the flour, baking soda, and salt.
- Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
- Fold in the chocolate chips, mini marshmallows, and graham cracker crumbs.
- Spread the cookie dough evenly in the prepared baking pan.
- Bake for 25-30 minutes or until the edges are golden brown.
- Allow to cool before cutting into bars and serving.
Notes
- For an extra gooey texture, add more mini marshmallows on top before baking.
- Store leftovers in an airtight container for up to 3 days.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 bar
- Calories: 250
- Sugar: 15g
- Sodium: 150mg
- Fat: 10g
- Saturated Fat: 6g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 35g
- Fiber: 1g
- Protein: 2g
- Cholesterol: 30mg
Keywords: Decadent S’mores Cookie Bars