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Home » Recipe Index » S’mores Cookie Bars

S’mores Cookie Bars

February 28, 2026 by AimeeDesserts

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These S’mores Cookie Bars combine the beloved flavors of classic s’mores into a delightful, chewy cookie bar. They’re perfect for sharing at gatherings, picnics, or simply enjoying at home. The easy preparation and delicious taste make them a standout dessert that everyone will love.

Why You’ll Love This Recipe

  • Easy to Make: With just a few simple steps, you can whip up these bars in no time.
  • Delicious Flavor: The combination of chocolate, marshmallows, and graham crackers creates an irresistible taste.
  • Perfect for Any Occasion: Whether it’s a family gathering or a cozy night in, these bars fit right in.
  • Kid-Friendly: Kids will love helping to make and eat these fun cookie bars.
  • Great for Sharing: Cut into squares, they are easy to serve and share with friends and family.

Tools and Preparation

Before you start making your S’mores Cookie Bars, gather the necessary tools. Having everything ready will make the process smoother and more enjoyable.

Essential Tools and Equipment

  • Mixing bowl
  • Baking pan (9×13 inch)
  • Electric mixer
  • Measuring cups
  • Measuring spoons
  • Spatula

Importance of Each Tool

  • Mixing bowl: A large mixing bowl is essential for combining all ingredients easily without spills.
  • Baking pan: The right size baking pan ensures even cooking and proper thickness of the cookie bars.
  • Electric mixer: Using an electric mixer saves time and effort when creaming butter and sugars together.

Ingredients

These S’mores Cookie Bars combine the classic flavors of s’mores in a delicious, chewy cookie bar form, perfect for sharing with family and friends.

For the Base

  • 1 cup Unsalted butter, softened
  • 1 cup Brown sugar, packed
  • 1/2 cup Granulated sugar
  • 2 Large eggs
  • 1 teaspoon Vanilla extract

Dry Ingredients

  • 2 1/2 cups All-purpose flour
  • 1 teaspoon Baking soda
  • 1/2 teaspoon Salt
  • 1 cup Graham cracker crumbs

Add-ins

  • 1 cup Chocolate chips
  • 1 cup Mini marshmallows
  • to taste Extra chocolate chips and marshmallows for topping

How to Make S’mores Cookie Bars

Step 1: Preheat the Oven

Preheat your oven to 350°F (175°C). This ensures a perfect bake for your cookie bars.

Step 2: Cream the Butter and Sugars

In a mixing bowl, cream together:
1. The softened unsalted butter,
2. Brown sugar,
3. Granulated sugar.

Mix until the mixture is light and fluffy.

Step 3: Add Eggs and Vanilla

Add:
1. The large eggs one at a time,
2. The vanilla extract.

Beat until well combined.

Step 4: Combine Dry Ingredients

In another bowl, mix together:
1. All-purpose flour,
2. Baking soda,
3. Salt,
4. Graham cracker crumbs.

Gradually add this dry mixture to the wet ingredients while mixing until combined.

Step 5: Add Chocolate Chips and Marshmallows

Fold in:
1. Chocolate chips,
2. Mini marshmallows.

Make sure they’re evenly distributed throughout the batter.

Step 6: Prepare the Baking Pan

Grease your baking pan or line it with parchment paper for easy removal after baking.

Step 7: Bake

Pour the batter into the prepared baking pan and spread it evenly. Bake in preheated oven for about 30 minutes or until golden brown on top.

Step 8: Cool and Serve

Allow your S’mores Cookie Bars to cool completely before cutting them into squares. Top with extra chocolate chips and marshmallows if desired for that extra indulgence! Enjoy!

How to Serve S’mores Cookie Bars

S’mores Cookie Bars are a delightful treat that can be enjoyed in various ways. Here are some creative serving suggestions to elevate your dessert experience.

Share with Friends

  • These bars are perfect for gatherings. Cut them into smaller squares and serve on a platter for easy sharing.

Pair with Ice Cream

  • Top each bar with a scoop of vanilla ice cream for a creamy contrast. The cold ice cream complements the warm, gooey texture of the cookie bars.

Drizzle with Chocolate Sauce

  • For an extra indulgent touch, drizzle warm chocolate sauce over the bars before serving. This adds richness and enhances the chocolate flavor.

Garnish with Extra Marshmallows

  • Sprinkle mini marshmallows on top and toast them slightly with a kitchen torch for a campfire-like experience right at your table.

Add a Touch of Sea Salt

  • A light sprinkle of flaky sea salt on top can enhance the flavors and provide a delightful salty-sweet balance.
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How to Perfect S’mores Cookie Bars

To achieve perfectly chewy and delicious S’mores Cookie Bars, keep these tips in mind.

  • Use softened butter: Ensure your butter is at room temperature for easy mixing, which leads to better texture.
  • Don’t overmix: Mix the dough just until combined. Overmixing can make your cookie bars tough instead of chewy.
  • Chill the dough: If you have time, chill the dough for about 30 minutes before baking. This helps maintain their shape while baking.
  • Bake until golden: Keep an eye on them while baking; they should be lightly golden around the edges but still soft in the center.
  • Let cool before cutting: Allow the bars to cool completely in the pan before slicing. This ensures cleaner cuts and prevents them from falling apart.

Best Side Dishes for S’mores Cookie Bars

S’mores Cookie Bars can be complemented beautifully by various side dishes. Consider these options to create a well-rounded dessert spread.

  1. Fresh Fruit Salad: A mix of seasonal fruits adds freshness and balances sweetness.
  2. Chocolate Fondue: Serve warm chocolate fondue as a dip alongside the cookie bars for an interactive dessert experience.
  3. Whipped Cream: Light and airy whipped cream provides a sweet contrast to the dense cookie bars.
  4. Coffee or Espresso: A hot cup of coffee or espresso pairs well, enhancing flavors while providing a caffeine kick.
  5. Milkshakes: Thick milkshakes, especially chocolate or vanilla, make an excellent pairing with these rich treats.
  6. Caramel Sauce: Offer caramel sauce as an additional dip option for those who enjoy extra sweetness alongside their dessert.

Common Mistakes to Avoid

Making S’mores Cookie Bars can be easy, but avoiding common pitfalls is key to achieving the best results.

  • Skipping the butter softening: Make sure to soften your butter properly. Cold butter can lead to uneven mixing and affect texture.
  • Overmixing the dough: Mix just until ingredients are combined. Overmixing can result in tough bars instead of chewy ones.
  • Using stale graham crackers: Fresh graham cracker crumbs yield better flavor and texture. Check your pantry before baking!
  • Not measuring ingredients accurately: Use proper measuring tools for dry and wet ingredients. Incorrect measurements can alter the final product.
  • Ignoring oven temperature: Preheat your oven properly. An incorrect temperature can cause uneven baking or burnt edges.

Storage & Reheating Instructions

Refrigerator Storage

  • Store S’mores Cookie Bars in an airtight container.
  • They will last for up to 5 days in the refrigerator.

Freezing S’mores Cookie Bars

  • Wrap individual bars in plastic wrap or aluminum foil.
  • Place them in a freezer-safe container or bag for up to 3 months.

Reheating S’mores Cookie Bars

  • Oven: Preheat to 350°F (175°C). Bake for about 10 minutes, until warmed through.
  • Microwave: Heat one bar at a time in 15-second intervals until warm. Be cautious not to overheat.
  • Stovetop: Place a bar in a skillet over low heat, cover, and warm for 5 minutes until heated through.

Frequently Asked Questions

Here are some answers to common questions about making S’mores Cookie Bars.

Can I use different types of chocolate for S’mores Cookie Bars?

Yes! Feel free to use dark chocolate, milk chocolate, or even white chocolate chips for a twist on classic flavors.

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

The edges should be golden brown, while the center may look slightly underbaked. They will firm up as they cool.

Are S’mores Cookie Bars suitable for make-ahead desserts?

Absolutely! You can prepare the dough ahead of time and refrigerate it, or bake them in advance and store as mentioned above.

Can I customize these S’mores Cookie Bars?

Yes! Add nuts, dried fruits, or flavored chips to make this dessert your own.

Final Thoughts

S’mores Cookie Bars combine rich flavors into a delightful treat that’s perfect for gatherings or quiet nights at home. Their versatility allows you to customize them with various mix-ins, making them a fun dessert option. Try these bars today and enjoy sharing them with family and friends!

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S'mores Cookie Bars

S’mores Cookie Bars


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  • Author: Aimee
  • Total Time: 45 minutes
  • Yield: Approximately 24 servings 1x
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Description

Get ready to indulge in the ultimate dessert experience with these S’mores Cookie Bars! Combining the classic flavors of chocolate, gooey marshmallows, and crunchy graham crackers, this recipe transforms your favorite campfire treat into a chewy, delectable cookie bar. Perfect for gatherings, picnics, or cozy nights at home, these bars are incredibly easy to make and sure to please both kids and adults alike. The delightful combination of textures and flavors will have everyone coming back for seconds!


Ingredients

Scale
  • 1 cup unsalted butter (softened)
  • 1 cup brown sugar (packed)
  • 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 graham cracker crumbs
  • 1 cup chocolate chips
  • 1 cup mini marshmallows

Instructions

  1. Preheat your oven to 350°F (175°C).
  2. In a mixing bowl, cream together softened butter, brown sugar, and granulated sugar until light and fluffy.
  3. Add eggs one at a time along with vanilla extract; beat until well combined.
  4. In another bowl, whisk together flour, baking soda, salt, and graham cracker crumbs.
  5. Gradually mix dry ingredients into the wet mixture until just combined.
  6. Fold in chocolate chips and mini marshmallows until evenly distributed.
  7. Grease a 9×13-inch baking pan or line it with parchment paper.
  8. Pour the batter into the prepared pan and spread evenly; bake for about 30 minutes or until golden brown.
  9. Let cool completely before cutting into squares.
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 square (60g)
  • Calories: 210
  • Sugar: 15g
  • Sodium: 100mg
  • Fat: 10g
  • Saturated Fat: 6g
  • Unsaturated Fat: 4g
  • Trans Fat: 0g
  • Carbohydrates: 30g
  • Fiber: 1g
  • Protein: 2g
  • Cholesterol: 35mg

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