WANT TO SAVE THIS RECIPE?
Are you ready for a sweet treat that combines classic flavors in a fun way? S’mores cookie bars are not only tasty, but they’re also easy to make! I’ll guide you through a simple recipe that captures the gooey goodness of s’mores in a cookie form. Gather your ingredients, and let’s dive into this delicious journey. Your taste buds will thank you!
Why I Love This Recipe
- Deliciously Gooey: These cookie bars have the perfect balance of chocolate and marshmallow, making each bite a sweet delight.
- Easy to Make: No need for complicated steps; just mix, bake, and enjoy these delicious treats!
- Perfect for Sharing: These bars are great for gatherings, ensuring there’s enough sweetness for everyone.
- Versatile Treat: You can customize them by adding nuts or different types of chocolate for a unique twist.
Ingredients
List of Ingredients
– 1 cup unsalted butter, softened
– 1 cup brown sugar, packed
– ½ cup granulated sugar
– 2 large eggs
– 1 teaspoon vanilla extract
– 2 ¼ cups all-purpose flour
– 1 teaspoon baking soda
– ½ teaspoon salt
– 1 cup semisweet chocolate chips
– 1 cup mini marshmallows
Key Ingredient Notes
Unsalted butter gives the best taste. Make sure it is soft, not melted. Brown sugar adds moisture and a deep flavor. Granulated sugar helps with sweetness. Eggs bind the mix. Use fresh eggs for the best rise.
All-purpose flour is the base. Baking soda makes the bars rise. Salt balances the sweet flavors. Semisweet chocolate chips bring richness. Mini marshmallows add that classic s’mores touch. Choose soft, fluffy marshmallows for the best texture.
Measuring and Preparation Tips
Use measuring cups for dry and wet ingredients. Level off flour for accuracy. To soften butter, let it sit at room temperature for about 30 minutes. Use a mixer to blend butter and sugars until creamy.
Crack eggs into a bowl before adding them to the mix. This helps check for shells. Mix everything until just combined to keep the bars soft. Do not overmix the dough. Enjoy the process of creating these tasty treats!

Step-by-Step Instructions
Preparing the Dough
To make S’mores Cookie Bars, start by gathering your ingredients. You need butter, sugars, eggs, vanilla, flour, baking soda, salt, and chocolate chips.
1. Cream the Butter and Sugars: In a large bowl, mix the softened butter, brown sugar, and granulated sugar. Use a hand mixer or a wooden spoon. Cream until smooth and fluffy.
2. Add Eggs and Vanilla: Crack in the eggs, one at a time. Mix well after each addition. Then, stir in the vanilla extract until combined.
3. Mix the Dry Ingredients: In another bowl, whisk together flour, baking soda, and salt. This helps to evenly distribute the baking soda and salt.
4. Combine Wet and Dry Ingredients: Gradually add the dry mix to the wet mix. Stir until just combined. Avoid over-mixing, as this can make the bars tough.
5. Fold in Chocolate Chips: Gently fold in the semisweet chocolate chips. This adds rich flavor and gooey texture.
Assembling the Cookie Bars
Now it’s time to put your cookie bars together.
1. Prepare the Baking Pan: Preheat the oven to 350°F (175°C). Line a 9×13-inch pan with parchment paper. This makes it easy to lift the bars out later.
2. Spread the Dough: Scoop the dough into the prepared pan. Use a spatula to spread it evenly across the bottom.
3. Add the Graham Cracker Layer: Break up graham crackers and sprinkle them over the dough. This gives that classic s’mores taste.
4. Layer More Chocolate: Add more chocolate chips on top of the graham crackers. Feel free to add mini marshmallows too, if you like.
5. Top with Remaining Dough: Take the rest of the dough and flatten it into pieces. Place it on top of the chocolate and graham crackers. It doesn’t need to cover everything.
Baking Time and Temperature
Baking is the final step.
1. Bake the Cookie Bars: Place the pan in the preheated oven. Bake for 25 to 30 minutes. The bars should be golden brown around the edges.
2. Check for Doneness: A toothpick inserted in the center should come out with a few moist crumbs.
3. Cool Before Cutting: Once baked, let the pan cool on a wire rack. Wait at least 15 minutes before cutting into bars. This helps them hold their shape.
Tips & Tricks
How to Get the Perfect Texture
To get the best texture for your S’mores cookie bars, use softened butter. This helps the dough mix well and stay soft. Make sure to cream the butter and sugars until light and fluffy. This step adds air to the mix. Combine the dry ingredients gently to avoid overmixing. Overmixing can make the bars tough.
Common Mistakes to Avoid
One common mistake is using cold butter. Cold butter makes the dough hard. Another mistake is not measuring flour properly. Use a spoon to fluff the flour before scooping. This helps you avoid adding too much flour. Lastly, do not bake the bars too long. They should be soft in the middle when done.
Expert Baking Tips
Always preheat your oven. This ensures even baking. Line your baking pan with parchment paper for easy removal. When adding chocolate chips, mix them in gently. You can also sprinkle some on top before baking for a nice look. If you want a gooey center, underbake slightly. The bars will firm up as they cool.
Pro Tips
- Use Room Temperature Butter: This helps achieve a creamy texture and ensures that the sugars incorporate evenly, resulting in a better cookie bar.
- Don’t Overmix the Dough: Overmixing can lead to tough cookie bars. Mix just until the ingredients are combined for a softer texture.
- Chill the Dough: If you have time, refrigerate the dough for 30 minutes before baking. This helps the flavors meld and can improve the texture.
- Add Extra Chocolate Chips: For a more indulgent treat, sprinkle additional chocolate chips on top before baking for that gooey chocolate finish.

Variations
DIY Flavor Combinations
S’mores Cookie Bars are great on their own, but you can mix it up! Try adding a few fun flavors to make them your own. You can swap out chocolate chips for peanut butter chips. This gives a rich, nutty taste. You can also add crushed graham crackers on top. This adds a nice crunch and extra flavor. Want some fruit? Toss in some diced strawberries or bananas. They add sweetness and freshness to each bite. You can even try different types of chocolate like dark or white chocolate. Each choice gives a new twist!
Gluten-Free Options
If you need gluten-free treats, I’ve got you covered! Simply swap the all-purpose flour for a gluten-free flour blend. Make sure it has xanthan gum. This helps with texture. Also, check all your other ingredients. Some brands of chocolate chips or graham crackers may have gluten. Always read labels to be safe. Your gluten-free S’mores Cookie Bars will still taste amazing!
Vegan Substitutes
Want a vegan version? It’s easy! Use plant-based butter instead of regular butter. For eggs, you can use flaxseed meal. Mix one tablespoon of flaxseed meal with three tablespoons of water. Let it sit for five minutes to thicken. You can also find vegan chocolate chips at many stores. Just like that, you have tasty vegan S’mores Cookie Bars. They will please everyone, even non-vegans!
Storage Info
Best Practices for Storing
Store your S’mores Cookie Bars in an airtight container. This keeps them soft and chewy. Use parchment paper to separate layers. This way, they won’t stick together. Keep them at room temperature for up to five days. If you want them to last longer, then consider freezing.
How to Keep Them Fresh
To keep your S’mores Cookie Bars fresh, avoid exposing them to air. Air can make them dry out quickly. You can also add a slice of bread to the container. The bread will help keep the bars moist. Just replace it every few days to keep everything fresh.
Freezing S’mores Cookie Bars
You can freeze S’mores Cookie Bars for up to three months. First, let them cool completely. Then, wrap them tightly in plastic wrap. After that, place the wrapped bars into a freezer bag. When you want to enjoy them, simply thaw at room temperature. For a warm treat, pop them in the microwave for a few seconds.
FAQs
How do I know when S’mores Cookie Bars are done?
You can tell when S’mores Cookie Bars are done by looking at the edges. They should be golden brown. The center will look a bit soft but not raw. Use a toothpick to check. Insert it into the center. If it comes out mostly clean, they are ready. Let them cool in the pan for a while. This helps them firm up.
Can I add more chocolate to the recipe?
Yes, you can add more chocolate! I love to mix in extra chocolate chips. Try using different types, like dark or milk chocolate. You can also add chocolate chunks for a fun texture. Just be careful not to overdo it. Too much chocolate can make the bars too rich.
What is the best way to serve S’mores Cookie Bars?
Serving S’mores Cookie Bars is fun and easy! Cut them into squares for sharing. You can serve them warm for a gooey treat. Add a scoop of vanilla ice cream on top for a special touch. Drizzle some chocolate sauce for extra flavor. They also taste great at room temperature!
In this article, we explored how to make delicious S’mores Cookie Bars. We covered ingredients, preparation, and step-by-step baking. You learned tips for texture, common mistakes to avoid, and expert insights. We also discussed tasty variations and smart storage methods.
Baking these bars is fun and rewarding. With practice, you’ll master the perfect treat. Enjoy sharing your cookie bars and delighting your friends and family. Happy bakin
S’mores Cookie Bars
Delicious cookie bars inspired by classic s'mores, featuring chocolate, marshmallows, and graham crackers.
Prep Time 15 minutes mins
Cook Time 25 minutes mins
Total Time 40 minutes mins
Course Dessert
Cuisine American
Servings 12
Calories 250 kcal
- 1 cup unsalted butter, softened
- 1 cup brown sugar, packed
- 0.5 cup granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- 2.25 cups all-purpose flour
- 1 teaspoon baking soda
- 0.5 teaspoon salt
- 1 cup semisweet chocolate chips
- 1 cup marshmallows
Preheat the oven to 350°F (175°C) and grease a baking pan.
In a large bowl, cream together the softened butter, brown sugar, and granulated sugar until smooth.
Beat in the eggs one at a time, then stir in the vanilla extract.
In another bowl, whisk together the flour, baking soda, and salt.
Gradually blend the dry ingredients into the wet mixture.
Fold in the chocolate chips and marshmallows.
Spread the dough evenly into the prepared baking pan.
Bake for 25 minutes or until golden brown.
Allow to cool before cutting into bars.
For extra flavor, consider adding crushed graham crackers into the dough.
Keyword cookie bars, dessert, s'mores
WANT TO SAVE THIS RECIPE?