S’mores Cookie Bars: 7 Warm Delights You’ll Adore

By:

Christina R. Jones

June 12, 2025

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Ah, s’mores! Just the thought of those gooey marshmallows, melty chocolate, and crunchy graham crackers takes me back to summer nights spent around the campfire. There’s something magical about roasting marshmallows until they’re golden brown, squishing them between two cookies, and feeling the warm, sweet goodness melt in your mouth. Now, let’s take that nostalgia and turn it into something even more delightful: S’mores Cookie Bars! Trust me, these bars are a game-changer. They capture all the classic flavors of s’mores but in a fun, easy-to-share format. You won’t need a campfire or a roasting stick—just a baking pan and your oven! I remember the first time I made these for a gathering; they disappeared faster than I could cut them. Everyone loved them, and I knew I’d struck gold with this recipe. So, let’s dive into making your own batch of these delicious S’mores Cookie Bars!

S’mores Cookie Bars - detail 1

Ingredients for S’mores Cookie Bars

Gathering the right ingredients is essential for crafting the perfect S’mores Cookie Bars. Here’s what you’ll need:

1 cup unsalted butter, softened: Make sure it’s at room temperature for easy creaming.
1 cup brown sugar: Use packed brown sugar for that rich, molasses flavor.
1 cup granulated sugar: This will help balance the sweetness and give a lovely texture.
2 large eggs: Fresh eggs are crucial for binding everything together.
2 teaspoons vanilla extract: A splash of pure vanilla adds depth to the flavor.
3 cups all-purpose flour: This is the base of your cookie bars, giving them structure.
1 teaspoon baking soda: This helps the bars rise just right.
1/2 teaspoon salt: A pinch to enhance all those sweet flavors.
1 cup chocolate chips: Semi-sweet or milk chocolate, whatever your heart desires!
1 cup mini marshmallows: These little guys provide that gooey, classic s’mores touch.
1 cup graham cracker crumbs: The key ingredient that brings the s’mores essence!

With all these ingredients on hand, you’re ready to create something truly special!

How to Prepare S’mores Cookie Bars

Now that you’ve got all your ingredients lined up, it’s time to roll up those sleeves and dive into the fun part—preparing your S’mores Cookie Bars! This process is pretty straightforward, and I promise you’ll be rewarded with a delicious treat that has all the flavors you love. Let’s break it down step-by-step!

Step-by-Step Instructions

Preheat the oven: Start by preheating your oven to 350°F (175°C). This ensures your cookie bars bake evenly and come out perfectly golden.
Grease the pan: Grab a 9×13 inch baking pan and grease it thoroughly. This helps prevent sticking and makes for easier cleanup. You can use cooking spray or a little butter for this!
Cream the butter and sugars: In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar. Use a hand mixer or a wooden spoon, and beat until the mixture is light and fluffy—about 2-3 minutes.
Add the eggs and vanilla: Next, crack in your two large eggs and pour in the vanilla extract. Mix until everything is well combined and smooth.
Combine dry ingredients: In a separate bowl, whisk together the all-purpose flour, baking soda, and salt. This step helps to evenly distribute the leavening agents.
Mix dry into wet: Gradually add your dry ingredients to the wet mixture, stirring gently until just combined. Don’t overmix, or you’ll end up with tough cookie bars!
Fold in the goodies: Now for the fun part! Gently fold in the chocolate chips, mini marshmallows, and graham cracker crumbs. This is where the s’mores magic happens!
Spread the dough: Transfer the dough into your greased baking pan. Use a spatula to spread it evenly, ensuring it reaches the corners.
Bake: Pop the pan into the preheated oven and bake for 25-30 minutes. You’re looking for a golden brown top and a toothpick inserted in the center should come out with a few moist crumbs.
Cool and slice: Once baked, remove the pan from the oven and let it cool completely. This is crucial—if you cut too soon, they might crumble! Once cooled, slice into bars and enjoy!

And there you have it! By following these steps, you’ll have a batch of gooey and delicious S’mores Cookie Bars that are sure to impress. Trust me, the aroma wafting through your kitchen will have everyone asking for seconds!

Why You’ll Love This Recipe

There are so many reasons to adore these S’mores Cookie Bars! Here are just a few:

Quick Preparation: You can whip these up in no time, making them perfect for spontaneous get-togethers or after-school treats.
Delightful Flavors: The combination of chocolate, marshmallows, and graham crackers creates that classic s’mores taste that everyone loves.
Shareable Treat: These bars are easy to cut into squares, making them perfect for sharing at parties, picnics, or just because!
Kid-Friendly: Kids (and adults!) will love helping mix and fold in the fun ingredients, making it a great family activity.

Trust me; once you try these, they’ll become a new favorite in your dessert rotation!

Tips for Success with S’mores Cookie Bars

To ensure your S’mores Cookie Bars turn out perfectly every time, keep these tips in mind!

Baking Time: Every oven is different, so start checking your bars at the 25-minute mark. You want them golden brown around the edges but still soft in the center. A toothpick should come out with a few moist crumbs—this means they’re just right!
Ingredient Substitutions: If you’re out of graham cracker crumbs, try using crushed digestive biscuits for a similar flavor. You can also swap out chocolate chips for your favorite varieties; white chocolate or peanut butter chips work wonderfully!
Serving Suggestions: Serve these bars warm with a scoop of vanilla ice cream or drizzle some chocolate sauce on top for an extra treat. They’re also delicious with a sprinkle of sea salt to balance the sweetness.
Extra Gooeyness: For those who love a little more gooeyness, add a handful of mini marshmallows on top before baking. They’ll puff up and create that iconic s’mores texture!

With these tips, you’ll be well on your way to making the best S’mores Cookie Bars your friends and family have ever tasted!

Storage & Reheating Instructions

Once you’ve enjoyed your delicious S’mores Cookie Bars, you’ll want to store any leftovers properly to keep them fresh and tasty. Place the bars in an airtight container at room temperature for up to 3 days. If you want to keep them longer, you can refrigerate them for up to a week. Just make sure they’re well-sealed to prevent drying out!

When you’re ready to indulge again, simply reheat a bar in the microwave for about 10-15 seconds to warm it up. This will revive that gooey marshmallow and melty chocolate goodness. Enjoy every bite!

FAQ about S’mores Cookie Bars

Got questions about making these delightful S’mores Cookie Bars? I’ve got answers! Here are some common queries that might pop up:

Can I use different types of chocolate? Absolutely! While semi-sweet chocolate chips are traditional, you can swap them for milk chocolate, dark chocolate, or even white chocolate for a unique twist.
What if I don’t have graham cracker crumbs? No worries! You can use crushed digestive biscuits or even vanilla wafer cookies as a substitute. They’ll still give you that sweet crunch!
Can I freeze these cookie bars? Yes! These S’mores Cookie Bars freeze beautifully. Just wrap them tightly in plastic wrap and place them in an airtight container. They’ll last up to three months in the freezer.
How do I know when they’re done baking? Look for a golden brown top and edges. A toothpick inserted into the center should come out with a few moist crumbs, not wet batter.

If you have other questions, don’t hesitate to ask! I’m here to help you create the best S’mores Cookie Bars ever!

Nutritional Information Disclaimer

Keep in mind that the nutritional information for these S’mores Cookie Bars is an estimate and can vary based on the specific ingredients and brands you use. If you have dietary restrictions or specific nutrition goals, I recommend calculating the values based on your exact ingredients for the most accurate results.

Share Your Experience

I’d love to hear about your adventures with these S’mores Cookie Bars! Have you tried any fun variations or special twists? Maybe you added some nuts or used different chocolates? Leave a comment below and share your thoughts. Your experiences can inspire others to get baking!