Easy Homemade S’mores Cookie Bars – Chewy Chocolate Marshmallow Dessert

These S’mores Cookie Bars take all the classic flavors of campfire s’mores—graham crackers, chocolate, and marshmallows—and turn them into a rich, chewy dessert you can bake at home. Perfect for sharing with family, friends, or at parties, these bars combine a buttery cookie base with gooey marshmallows and melty chocolate for the ultimate treat. Whether you’re craving a sweet dessert for a weekend gathering, a fun treat for kids, or a make-ahead dessert for potlucks, these S’mores Cookie Bars are quick, easy, and irresistibly delicious.

Introduction

S’mores are a nostalgic favorite, and turning them into cookie bars makes enjoying them much easier—no campfire required. These chewy cookie bars balance sweetness, richness, and texture. The buttery cookie dough provides a sturdy yet tender base, graham cracker crumbs add subtle crunch, chocolate chips bring melty indulgence, and mini marshmallows lend gooey sweetness in every bite.

This recipe is inspired by the classic s’mores flavor combination but simplified for home baking. The bars are easy to make, visually appealing with layers of chocolate and marshmallows, and perfect for sharing at parties, dessert tables, or family gatherings.

Why You’ll Love This Recipe

• Chewy and gooey – Soft cookie texture with melty marshmallow pockets
• Classic s’mores flavor – Graham crackers, chocolate, and marshmallows all in one
• Easy to make – Simple ingredients and straightforward steps
• Kid-friendly – Perfect for dessert or afternoon snacks
• Shareable – Ideal for parties or potlucks
• Customizable – Add nuts or different chocolates to suit your taste

Ingredients Breakdown

Servings: 12

Main Ingredients

• 1 cup unsalted butter, softened
• 1 cup packed brown sugar
• ½ cup granulated sugar
• 2 large eggs
• 1 teaspoon vanilla extract
• 2½ cups all-purpose flour
• 1 teaspoon baking soda
• ½ teaspoon salt
• 1 cup graham cracker crumbs
• 1 cup chocolate chips
• 1 cup mini marshmallows
• Extra chocolate chips and mini marshmallows for topping, to taste

Equipment Needed

• Large mixing bowl
• 9×13 inch baking pan
• Whisk
• Spatula
• Parchment paper (optional for easy removal)

Ingredient Notes

• Butter and sugars create a rich, chewy texture
• Eggs bind the dough and provide structure
• Graham cracker crumbs add classic s’mores flavor and slight crunch
• Chocolate chips and marshmallows bring gooey sweetness and melty indulgence
• Vanilla extract enhances flavor depth

Step-by-Step Instructions

1. Preheat Oven
   Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking pan or line with parchment paper for easy removal.
2. Cream Butter and Sugars
   In a large mixing bowl, cream together 1 cup softened butter, 1 cup brown sugar, and ½ cup granulated sugar until light and fluffy.
3. Add Eggs and Vanilla
   Beat in 2 large eggs one at a time, mixing well after each. Stir in 1 teaspoon vanilla extract until combined.
4. Combine Dry Ingredients
   In a separate bowl, whisk together 2½ cups all-purpose flour, 1 teaspoon baking soda, and ½ teaspoon salt.
5. Mix Dry and Wet Ingredients
   Gradually add the dry mixture to the butter mixture, mixing until just combined. Do not overmix to maintain a tender texture.
6. Fold in S’mores Components
   Gently fold in 1 cup graham cracker crumbs and 1 cup chocolate chips until evenly distributed.
7. Layer the Dough
   Spread half of the cookie dough evenly into the prepared baking pan.
8. Add Marshmallows
   Sprinkle 1 cup mini marshmallows evenly over the cookie layer.
9. Top with Remaining Dough
   Gently spread the remaining cookie dough over the marshmallows to cover them.
10. Add Extra Toppings
    Sprinkle additional chocolate chips and mini marshmallows on top for extra gooeyness.
11. Bake
    Bake in preheated oven for 25–30 minutes, until the top is golden brown and a toothpick inserted into the center comes out clean.
12. Cool and Slice
    Allow bars to cool in the pan for 10 minutes. Lift out using parchment paper if used, and cool completely on a wire rack. Slice into squares and serve.

Tips & Variations

• Add nuts: Chopped pecans or walnuts add crunch and depth
• Chocolate variety: Use milk, dark, or white chocolate chips for different flavors
• Mini marshmallow layer: For extra gooeyness, add a second layer of marshmallows in the middle
• Make-ahead: Store in an airtight container at room temperature for 2–3 days
• Freezing: Wrap tightly and freeze for up to 1 month; thaw before serving

Flavor Profile

These bars are chewy, sweet, and gooey with a buttery cookie base. The graham cracker crumbs provide subtle crunch and classic s’mores flavor. Chocolate chips melt into pockets of richness while mini marshmallows create soft, sweet gooey bites. Each bite is a balance of textures and the nostalgic flavors of traditional s’mores.

Nutritional Overview

Per Serving (1 bar, 1/12 of recipe):

• Calories: 350
• Protein: 4g
• Carbohydrates: 50g
• Fat: 14g
• Fiber: 1g

Dietary Notes: Contains gluten, dairy, and eggs.

Make-Ahead & Meal Prep Tips

• Prep dough ahead: Dough can be refrigerated for 24 hours before baking
• Storage: Store baked bars in airtight container at room temperature
• Freezing: Freeze cooled bars for up to 1 month; thaw before serving
• Serving: Best enjoyed slightly warm for gooey marshmallow and melted chocolate

FAQs

1. Can I use jumbo marshmallows?
Yes, but cut them into smaller pieces for even distribution.

2. Can I make these gluten-free?
Yes, substitute all-purpose flour with a gluten-free blend.

3. Can I use chocolate chunks instead of chips?
Absolutely, chunks melt differently and add texture variation.

4. Do I have to use graham cracker crumbs?
They provide classic s’mores flavor; you can substitute crushed digestive biscuits if desired.

5. Can I make mini bars instead of large ones?
Yes, bake in a muffin tin or smaller pans for individual servings, adjusting baking time slightly.

Cooking Timeline

Step	Time
Prep Time	15 minutes
Bake Time	25–30 minutes
Total Time	45 minutes
Servings	12

Serving Suggestions

• Serve warm for gooey chocolate and marshmallow
• Sprinkle with extra powdered sugar for presentation
• Perfect for dessert tables, potlucks, or casual family treats
• Pair with cold milk for classic nostalgia

Recipe Variations

• Nutty S’mores: Add chopped pecans or almonds
• Double Chocolate: Use chocolate cookie dough instead of plain dough
• Caramel Twist: Drizzle caramel sauce over top before serving
• White Chocolate Raspberry: Swap chocolate chips for white chocolate and add dried raspberries

Ingredient Spotlight

Graham Cracker Crumbs

Provide the classic s’mores flavor and a subtle crunch that balances the soft cookie dough.

Mini Marshmallows

Create gooey pockets of sweetness that melt slightly during baking for that signature s’mores experience.

Pro Cooking Tips

• Do not overmix dough to maintain tender, chewy bars
• Use parchment paper for easy removal from pan
• Press dough evenly to ensure uniform baking
• Add toppings last to prevent them from sinking into the dough

Storage & Freezing Guide

• Room Temperature: Store in airtight container up to 2–3 days
• Freezer: Freeze bars wrapped in foil or airtight container up to 1 month
• Reheating: Warm slightly in microwave or oven to revive gooey texture

Nutrition Estimate Table (Per Serving)

Nutrient	Amount
Calories	350
Protein	4g
Carbs	50g
Fat	14g
Fiber	1g

Expanded Conclusion

These S’mores Cookie Bars are the perfect dessert for anyone craving chewy, chocolatey, and gooey treats. Simple to prepare, visually appealing, and packed with classic flavors, they are ideal for family gatherings, parties, or casual snacking. With layers of buttery cookie, chocolate chips, and melty marshmallows, each bar captures the nostalgic taste of s’mores in a convenient, easy-to-serve format. Save this recipe and enjoy a sweet treat that’s sure to become a household favorite.

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