S’mores Cookie Bars Irresistible and Easy Treat

June 25, 2025 by Lily

Get ready to delight your taste buds with S’mores Cookie Bars! This easy treat combines creamy chocolate, fluffy marshmallows, and crunchy graham crackers. In just a few simple steps, you’ll bake these mouth-watering bars that are perfect for any occasion. Whether you’re a baking newbie or a seasoned pro, this recipe will become a favorite. Let’s dive in and create this sweet, gooey dream together!

Ingredients

List of Ingredients

– 1 cup unsalted butter, softened

– 1 cup brown sugar, packed

– 1/2 cup granulated sugar

– 1 large egg

– 2 teaspoons vanilla extract

– 2 1/2 cups all-purpose flour

– 1 teaspoon baking soda

– 1/2 teaspoon salt

– 1 cup chocolate chips (semi-sweet or milk chocolate)

– 1 cup mini marshmallows

– 1 cup graham cracker crumbs

I love using fresh ingredients for my S’mores Cookie Bars. Quality butter makes a big difference. I prefer unsalted butter because it lets me control the salt. Brown sugar gives that deep flavor. It adds moisture, making the bars soft. Granulated sugar helps with sweetness and a nice crust.

I always use one large egg. It binds the dough well. Vanilla extract adds a warm taste. I choose all-purpose flour for the right texture. Baking soda helps the bars rise. Salt balances the sweetness and enhances flavors.

The star ingredients are chocolate chips, mini marshmallows, and graham cracker crumbs. Use semi-sweet or milk chocolate for a classic taste. Mini marshmallows melt perfectly, creating that gooey texture. Graham cracker crumbs add crunch and that signature S’mores flavor.

Ingredient Substitutes

– For a healthier option, try using coconut oil or applesauce instead of butter.

– You can use gluten-free flour blends for a gluten-free version.

– For vegan options, swap the egg with flaxseed meal mixed with water and use plant-based butter.

These substitutes keep the essence of S’mores Cookie Bars while making them fit different diets.

Step-by-Step Instructions

Preparation Steps

1. First, preheat your oven to 350°F (175°C). This helps the bars cook evenly.

2. Grease a 9×13-inch baking dish or use parchment paper. This makes it easy to remove the bars later.

3. In a large bowl, mix the softened butter, brown sugar, and granulated sugar. Beat until light and fluffy.

4. Add in the egg and vanilla extract. Mix until everything is well combined.

5. In another bowl, whisk together the flour, baking soda, and salt.

6. Gradually add the dry mix to the wet mix. Stir until just combined.

7. Fold in the chocolate chips and graham cracker crumbs. Make sure they are evenly mixed.

Baking Instructions

1. Press half of the cookie dough into the bottom of the prepared dish. This is your base layer.

2. Evenly spread the mini marshmallows over the dough. This adds the S’mores flavor.

3. Crumble the rest of the cookie dough over the marshmallows. Leave some gaps so the marshmallows peek through.

4. Bake in the oven for 25-30 minutes. Look for a golden brown top and set edges.

5. When done, remove from the oven and let cool completely in the pan.

Cooling and Serving

1. Allow the bars to cool in the pan for about 15-20 minutes. This helps them firm up.

2. Once cool, use a sharp knife to cut them into squares. Aim for even pieces for a nice look.

3. Serve them warm or at room temperature. They are tasty either way!

For more details, check the Full Recipe.

Tips & Tricks

Baking Tips

To get that perfect golden brown top, keep an eye on the oven. Bake the bars for 25-30 minutes. When the edges are set and the top looks golden, they are done. You want a soft center, so don’t overbake.

To avoid a dry or crumbly texture, measure your flour correctly. Too much flour can make the bars dry. Use a spoon to fluff the flour, then scoop it into your measuring cup. Level it off with a knife for accuracy. Also, remember to cream the butter and sugars until light and fluffy. This helps keep the bars moist.

Storage Tips

For best practices in storing leftovers, let the S’mores Cookie Bars cool completely. Then, place them in an airtight container. This keeps them fresh for up to a week. If you want to keep them longer, you can freeze them.

To freeze S’mores Cookie Bars for later, cut them into squares first. Wrap each square tightly in plastic wrap. Then, place them in a freezer-safe bag. They will keep well for up to three months. When you’re ready to enjoy, just thaw them in the fridge overnight.

Variations

Flavor Variations

You can switch up the chocolate in your S’mores Cookie Bars. Consider using dark chocolate for a richer taste. White chocolate adds a sweet twist, too. Another fun idea is to mix in peanut butter or Nutella. This gives your bars a creamy, nutty flavor. You can layer it in or swirl it through the dough. Each option adds a unique taste that makes these bars even more fun!

Themed S’mores Cookie Bars

Get creative with holiday themes! For winter, try adding peppermint bits or extract. This gives a fresh, festive flavor. In the fall, pumpkin spice can turn your bars into a cozy treat. You can also make them for special occasions. For birthdays, add colorful sprinkles. For summer, try a tropical twist with coconut or pineapple bits. Each theme takes your S’mores Cookie Bars to a new level!

Presentation Ideas

Serving Suggestions

S’mores Cookie Bars look amazing when served on a rustic wooden board. You can cut them into neat squares or fun shapes to please your guests. For a fun twist, serve them warm with a scoop of vanilla ice cream on the side. This melts the chocolate and adds a creamy touch.

Pair these bars with a tall glass of cold milk or a rich hot chocolate. The drinks enhance the sweet and gooey flavors of the bars. You might also try serving them with a side of fresh fruit, like strawberries or bananas, for a burst of color.

Garnishing Tips

Drizzling melted chocolate over the top adds a fancy touch. You can melt semi-sweet or milk chocolate for this. It creates a glossy finish that makes the bars look extra special.

Toasted marshmallows make a great topping too. You can toast them quickly under the broiler or with a kitchen torch. Place the toasted marshmallows on top of the bars right before serving. This adds a crunchy layer and takes the flavor to another level.

For an even richer taste, try a sprinkle of graham cracker crumbs on top. It ties in all the flavors and looks beautiful. These simple garnishes make your S’mores Cookie Bars pop when presenting them to friends or family.

FAQs

Common Questions

How do I know when S’mores Cookie Bars are done baking?

Your S’mores Cookie Bars are ready when the top turns golden brown. The edges should feel set, but the center may be slightly soft. A toothpick inserted into the middle should come out with a few moist crumbs.

Can I make S’mores Cookie Bars ahead of time?

Yes, you can make these bars ahead of time. Bake them and let them cool completely. Then, store them in an airtight container at room temperature for up to three days. They also freeze well for longer storage.

What should I do if the marshmallows burn?

If marshmallows burn, it’s best to remove the bars from the oven right away. You can scrape off the burnt bits gently with a knife. The flavor will still be good, but the look might not be perfect.

Recipe Adaptations

Can I make these cookie bars gluten-free?

Yes, you can make gluten-free S’mores Cookie Bars. Simply swap regular flour with a gluten-free flour blend. Make sure the graham cracker crumbs are also gluten-free.

What is the best way to store S’mores Cookie Bars to keep them fresh?

To keep your S’mores Cookie Bars fresh, store them in an airtight container. You can also layer parchment paper between bars to prevent sticking. This keeps them soft and tasty.

Full Recipe Reference

For the full recipe, check out the [Full Recipe](#).

You now know how to make delicious S’mores Cookie Bars. We covered all the key ingredients, including tasty options for substitutes. I shared clear steps from preparation to serving. I also provided valuable tips, fun variations, and creative presentation ideas to keep things exciting.

Enjoy baking and sharing these sweet treats! They will impress friends and family. Don’t forget to explore the FAQ for any questions. Happy baking!

$- 1 cup unsalted butter, softened - 1 cup brown sugar, packed - 1/2 cup granulated sugar - 1 large egg - 2 teaspoons vanilla extract - 2 1/2 cups all-purpose flour - 1 teaspoon baking soda - 1/2 teaspoon salt - 1 cup chocolate chips (semi-sweet or milk chocolate) - 1 cup mini marshmallows - 1 cup graham cracker crumbs I love using fresh ingredients for my S’mores Cookie Bars. Quality butter makes a big difference. I prefer unsalted butter because it lets me control the salt. Brown sugar gives that deep flavor. It adds moisture, making the bars soft. Granulated sugar helps with sweetness and a nice crust. I always use one large egg. It binds the dough well. Vanilla extract adds a warm taste. I choose all-purpose flour for the right texture. Baking soda helps the bars rise. Salt balances the sweetness and enhances flavors. The star ingredients are chocolate chips, mini marshmallows, and graham cracker crumbs. Use semi-sweet or milk chocolate for a classic taste. Mini marshmallows melt perfectly, creating that gooey texture. Graham cracker crumbs add crunch and that signature S’mores flavor. - For a healthier option, try using coconut oil or applesauce instead of butter. - You can use gluten-free flour blends for a gluten-free version. - For vegan options, swap the egg with flaxseed meal mixed with water and use plant-based butter. These substitutes keep the essence of S’mores Cookie Bars while making them fit different diets. 1. First, preheat your oven to 350°F (175°C). This helps the bars cook evenly. 2. Grease a 9x13-inch baking dish or use parchment paper. This makes it easy to remove the bars later. 3. In a large bowl, mix the softened butter, brown sugar, and granulated sugar. Beat until light and fluffy. 4. Add in the egg and vanilla extract. Mix until everything is well combined. 5. In another bowl, whisk together the flour, baking soda, and salt. 6. Gradually add the dry mix to the wet mix. Stir until just combined. 7. Fold in the chocolate chips and graham cracker crumbs. Make sure they are evenly mixed. 1. Press half of the cookie dough into the bottom of the prepared dish. This is your base layer. 2. Evenly spread the mini marshmallows over the dough. This adds the S’mores flavor. 3. Crumble the rest of the cookie dough over the marshmallows. Leave some gaps so the marshmallows peek through. 4. Bake in the oven for 25-30 minutes. Look for a golden brown top and set edges. 5. When done, remove from the oven and let cool completely in the pan. 1. Allow the bars to cool in the pan for about 15-20 minutes. This helps them firm up. 2. Once cool, use a sharp knife to cut them into squares. Aim for even pieces for a nice look. 3. Serve them warm or at room temperature. They are tasty either way! For more details, check the Full Recipe. To get that perfect golden brown top, keep an eye on the oven. Bake the bars for 25-30 minutes. When the edges are set and the top looks golden, they are done. You want a soft center, so don’t overbake. To avoid a dry or crumbly texture, measure your flour correctly. Too much flour can make the bars dry. Use a spoon to fluff the flour, then scoop it into your measuring cup. Level it off with a knife for accuracy. Also, remember to cream the butter and sugars until light and fluffy. This helps keep the bars moist. For best practices in storing leftovers, let the S’mores Cookie Bars cool completely. Then, place them in an airtight container. This keeps them fresh for up to a week. If you want to keep them longer, you can freeze them. To freeze S’mores Cookie Bars for later, cut them into squares first. Wrap each square tightly in plastic wrap. Then, place them in a freezer-safe bag. They will keep well for up to three months. When you're ready to enjoy, just thaw them in the fridge overnight. {{image_2}} You can switch up the chocolate in your S’mores Cookie Bars. Consider using dark chocolate for a richer taste. White chocolate adds a sweet twist, too. Another fun idea is to mix in peanut butter or Nutella. This gives your bars a creamy, nutty flavor. You can layer it in or swirl it through the dough. Each option adds a unique taste that makes these bars even more fun! Get creative with holiday themes! For winter, try adding peppermint bits or extract. This gives a fresh, festive flavor. In the fall, pumpkin spice can turn your bars into a cozy treat. You can also make them for special occasions. For birthdays, add colorful sprinkles. For summer, try a tropical twist with coconut or pineapple bits. Each theme takes your S’mores Cookie Bars to a new level! S'mores Cookie Bars look amazing when served on a rustic wooden board. You can cut them into neat squares or fun shapes to please your guests. For a fun twist, serve them warm with a scoop of vanilla ice cream on the side. This melts the chocolate and adds a creamy touch. Pair these bars with a tall glass of cold milk or a rich hot chocolate. The drinks enhance the sweet and gooey flavors of the bars. You might also try serving them with a side of fresh fruit, like strawberries or bananas, for a burst of color. Drizzling melted chocolate over the top adds a fancy touch. You can melt semi-sweet or milk chocolate for this. It creates a glossy finish that makes the bars look extra special. Toasted marshmallows make a great topping too. You can toast them quickly under the broiler or with a kitchen torch. Place the toasted marshmallows on top of the bars right before serving. This adds a crunchy layer and takes the flavor to another level. For an even richer taste, try a sprinkle of graham cracker crumbs on top. It ties in all the flavors and looks beautiful. These simple garnishes make your S'mores Cookie Bars pop when presenting them to friends or family. How do I know when S’mores Cookie Bars are done baking? Your S’mores Cookie Bars are ready when the top turns golden brown. The edges should feel set, but the center may be slightly soft. A toothpick inserted into the middle should come out with a few moist crumbs. Can I make S’mores Cookie Bars ahead of time? Yes, you can make these bars ahead of time. Bake them and let them cool completely. Then, store them in an airtight container at room temperature for up to three days. They also freeze well for longer storage. What should I do if the marshmallows burn? If marshmallows burn, it’s best to remove the bars from the oven right away. You can scrape off the burnt bits gently with a knife. The flavor will still be good, but the look might not be perfect. Can I make these cookie bars gluten-free? Yes, you can make gluten-free S’mores Cookie Bars. Simply swap regular flour with a gluten-free flour blend. Make sure the graham cracker crumbs are also gluten-free. What is the best way to store S’mores Cookie Bars to keep them fresh? To keep your S’mores Cookie Bars fresh, store them in an airtight container. You can also layer parchment paper between bars to prevent sticking. This keeps them soft and tasty. For the full recipe, check out the [Full Recipe](#). You now know how to make delicious S’mores Cookie Bars. We covered all the key ingredients, including tasty options for substitutes. I shared clear steps from preparation to serving. I also provided valuable tips, fun variations, and creative presentation ideas to keep things exciting. Enjoy baking and sharing these sweet treats! They will impress friends and family. Don’t forget to explore the FAQ for any questions. Happy baking!$