Are you ready for a sweet treat that’s simple to make? S’mores Cookie Bars are the perfect dessert to satisfy your cravings. With gooey marshmallows, rich chocolate, and a buttery cookie base, every bite is a delight. In this easy recipe, I’ll guide you through ingredient choices and baking tips to ensure your bars turn out amazing. Let’s dive in and whip up this scrumptious snack!
Why I Love This Recipe
- Decadent Flavor: The combination of chocolate, marshmallows, and graham crackers creates an irresistible taste that brings back memories of campfire s’mores.
- Easy to Make: This recipe requires minimal effort and time, making it perfect for a quick dessert or a fun baking project with kids.
- Great for Sharing: These cookie bars are easy to slice and serve, making them an excellent treat for parties, potlucks, or family gatherings.
- Customizable: You can easily adapt the recipe by adding nuts, different types of chocolate, or even flavored extracts to suit your taste.
Ingredients
List of Ingredients
To make the best S’mores Cookie Bars, you will need the following:
– 1 cup unsalted butter, softened
– 1 cup brown sugar, packed
– 1/2 cup granulated sugar
– 1 large egg
– 2 teaspoons vanilla extract
– 2 1/4 cups all-purpose flour
– 1 teaspoon baking soda
– 1/2 teaspoon salt
– 1 cup chocolate chips (milk or dark)
– 1 cup mini marshmallows
– 1 cup crushed graham crackers
Important Notes on Ingredient Quality
Using high-quality ingredients makes a big difference. Choose unsalted butter for a better taste. Fresh eggs help the bars rise nicely. Select good chocolate chips, as they add rich flavor. Look for mini marshmallows that are soft and chewy. Fresh graham crackers will give a nice crunch. If you can, use organic or non-GMO options for the best quality.
Possible Ingredient Substitutions
You can easily swap some ingredients if needed. For a dairy-free version, use vegan butter. You can replace the egg with a flax egg or applesauce for a vegan option. If you want a gluten-free treat, use gluten-free flour instead of all-purpose flour. You can also switch chocolate chips for white chocolate or butterscotch chips for a new flavor.

Step-by-Step Instructions
Preparation Steps
1. Start by preheating your oven to 350°F (175°C). Grease a 9×13 inch baking pan or line it with parchment paper. This helps with easy removal later.
2. In a large bowl, cream together 1 cup of softened butter, 1 cup of brown sugar, and 1/2 cup of granulated sugar. Mix until it’s light and fluffy.
3. Now, beat in 1 large egg and 2 teaspoons of vanilla extract until everything is well mixed.
4. In another bowl, whisk together 2 1/4 cups of all-purpose flour, 1 teaspoon of baking soda, and 1/2 teaspoon of salt. Gradually add this dry mix to the wet mix. Stir until just combined.
5. Fold in 1 cup of chocolate chips, 1 cup of mini marshmallows, and 1 cup of crushed graham crackers. Make sure everything mixes well.
Baking Instructions
6. Spread the cookie dough evenly into the prepared pan. Press it down gently to make it even.
7. Bake in your preheated oven for 20-25 minutes. You want the edges to be golden and the center to be set. It will firm up as it cools.
8. Once baked, take it out and let it cool in the pan for about 10 minutes. Then slice it into bars.
Tips for Perfectly Baked Bars
– Use room temperature butter for easy mixing.
– Don’t overmix the dough after adding the dry ingredients; this helps keep the bars soft.
– If you like a gooey center, check them at the 20-minute mark.
– For a fun presentation, serve the bars on a wooden board. Drizzle with melted chocolate and add more mini marshmallows on top.
Tips & Tricks
Common Mistakes to Avoid
When making S’mores cookie bars, avoid overmixing the dough. This can make them tough. Also, don’t skip the graham crackers. They give that classic S’mores taste. Make sure your butter is softened, not melted. If it’s too warm, the bars can spread too much. Lastly, check your oven temperature with a thermometer. Ovens can be off, and you want the right heat for baking.
How to Achieve a Gooey Center
To get that gooey center, don’t overbake the bars. Bake them just until the edges are golden. The center should look set but still soft. I recommend pulling them out of the oven at around 20 minutes. Let them cool in the pan for about 10 minutes. This helps them firm up but keeps that gooey goodness inside. For extra gooeyness, serve them warm and watch the marshmallows melt!
Recommended Baking Tools and Equipment
Here are some tools that make this recipe easier:
– A 9×13 inch baking pan
– Parchment paper for easy lifting
– A large mixing bowl for blending
– A whisk for mixing dry ingredients
– A spatula for folding in the treats
– An oven thermometer to check the heat
Having these tools ready will help you bake like a pro!
Pro Tips
- Chill the Dough: For thicker cookie bars, chill the dough for 30 minutes before spreading it in the pan. This helps prevent spreading during baking.
- Use Parchment Paper: Lining your baking pan with parchment paper not only makes for easy removal but also helps to prevent the edges from over-baking.
- Mix-Ins Variations: Feel free to customize your cookie bars by adding different mix-ins like nuts, other types of chocolate, or even caramel bits for an extra layer of flavor.
- Storage Tip: Store leftover cookie bars in an airtight container at room temperature for up to a week. For longer storage, freeze them for up to 3 months!
Variations
Different Chocolate Options (Milk, Dark, White)
You can choose different types of chocolate for your S’mores Cookie Bars. Milk chocolate gives a sweet and creamy taste. Dark chocolate adds a rich flavor with a bit of bite. White chocolate brings a smooth, sweet flavor that mixes well with marshmallows. Try mixing different kinds for a fun twist!
Alternative Add-ins (Nuts, Coconut, etc.)
You can add more fun with extra ingredients. Chopped nuts, like walnuts or pecans, give a nice crunch. Shredded coconut adds a tropical taste that pairs well with chocolate. You can even try adding caramel bits for a sweet surprise. Get creative! Each mix can change the taste of your bars.
Seasonal Variants (Pumpkin Spice, Peppermint)
Seasonal flavors can make your S’mores Cookie Bars really special. In fall, add pumpkin spice for a warm, cozy taste. During the holidays, mix in crushed peppermint for a fresh, festive flavor. These changes make your bars perfect for any time of year. Experiment with these flavors to find your favorite!
Storage Info
How to Store S’mores Cookie Bars
You can store S’mores cookie bars easily. First, let them cool down completely. Then, cut them into squares. Place the squares in an airtight container. Keep them at room temperature for about three days. If you want them to last longer, put them in the fridge. They will stay fresh for about a week in the fridge.
Tips for Freezing for Later Use
Freezing S’mores cookie bars is a great idea. After cutting, wrap each bar in plastic wrap tightly. Then, place them in a freezer-safe bag. Be sure to remove as much air as possible. You can freeze them for up to three months. When you’re ready to eat, just thaw them in the fridge overnight.
Reheating Instructions
Reheating is simple and quick. You can use the microwave for this. Just place a bar on a plate. Heat it for about 10 to 15 seconds. Check if it’s warm enough. If it’s not, heat it in 5-second bursts. You can also warm them in the oven. Set the oven to 350°F (175°C) and bake for about 5 minutes. Enjoy your warm, gooey treat!
FAQs
How do I know when the S’mores Cookie Bars are done?
You can tell when the S’mores Cookie Bars are done by checking the edges. They should have a nice golden brown color. The center should look set but still soft. You can also use a toothpick; it should come out with some crumbs, not wet dough. Remember, the bars will firm up as they cool.
Can I make these cookie bars gluten-free?
Yes, you can make these cookie bars gluten-free. Simply swap all-purpose flour for a gluten-free blend. Look for blends that work well in baking. Make sure to check if other ingredients, like chocolate chips, are also gluten-free. This way, everyone can enjoy these tasty treats!
What should I serve with S’mores Cookie Bars?
S’mores Cookie Bars taste great on their own. However, you can serve them with a scoop of vanilla ice cream. The cold ice cream will pair well with the warm bars. You might also add some whipped cream or drizzle chocolate sauce on top. Enjoying them with friends makes them even better!
This blog covered all you need to know for making s’mores cookie bars. We discussed key ingredients and their quality. I shared step-by-step instructions for perfectly baked bars and tips to avoid common mistakes. You learned how to make tasty variations and store them well. Use this guide to create delicious treats that everyone will love. With these tips and tricks, you’ll be a cookie bar expert in no time! Happy bakin