S’mores Cookie Bars – Gooey, Chocolatey & Campfire-Inspired Dessert

S’mores Cookie Bars are everything you love about classic campfire s’mores packed into a rich, chewy cookie bar. With a buttery graham cracker base, gooey melted chocolate, and toasted marshmallows on top, every bite is sweet, soft, and slightly crispy.

Why You’ll Love This Recipe

• Classic s’mores flavor in bar form
• Gooey marshmallow topping
• Rich chocolate layers
• Buttery graham cracker base
• Easy one-pan dessert
• Perfect for parties and gatherings
• Kid-friendly treat
• No campfire needed
• Soft, chewy texture
• Bakery-style results at home

Ingredients

For the Graham Cracker Base

• 1 1/2 cups graham cracker crumbs
• 1/2 cup melted butter
• 1/4 cup brown sugar

For the Cookie Layer

• 1/2 cup unsalted butter, softened
• 1/2 cup brown sugar
• 1/4 cup granulated sugar
• 1 large egg
• 1 teaspoon vanilla extract
• 1 cup all-purpose flour
• 1/2 teaspoon baking soda
• 1/4 teaspoon salt
• 1 cup chocolate chips

For the Topping

• 2 cups mini marshmallows
• 1/2 cup chocolate chunks (optional)

Step-by-Step Instructions

1. Preheat oven to 350°F (175°C).
2. Line an 8×8 baking pan with parchment paper.
3. Mix graham cracker crumbs, melted butter, and brown sugar.
4. Press mixture firmly into pan to form base.
5. In a bowl, cream butter and sugars together.
6. Add egg and vanilla extract.
7. Mix in flour, baking soda, and salt.
8. Fold in chocolate chips.
9. Spread cookie dough over graham crust.
10. Bake for 20–25 minutes until golden.
11. Remove and top with marshmallows.
12. Add chocolate chunks if desired.
13. Bake for another 3–5 minutes until marshmallows puff.
14. Optional: broil 1–2 minutes for toasted tops.
15. Cool completely before slicing.

Tips & Variations

• Use dark chocolate for richer flavor
• Add peanut butter chips for variation
• Broil carefully for toasted marshmallows
• Use crushed digestive biscuits if no graham crackers
• Add caramel drizzle on top
• Chill before cutting for clean slices
• Do not overbake cookie layer
• Sprinkle sea salt for contrast
• Add chopped nuts for crunch
• Serve slightly warm for gooey texture

Storage & Freezer Instructions

• Store in airtight container up to 4 days
• Refrigerate up to 1 week
• Freeze up to 2 months
• Wrap individually for freezing
• Reheat slightly before serving
• Keep away from heat to prevent melting

Serving & Pairing Ideas

• Hot chocolate
• Milkshakes
• Coffee or latte
• Vanilla ice cream
• Birthday dessert trays
• Picnic desserts
• Movie night snacks
• Holiday dessert tables
• Campfire-themed parties
• Afternoon sweet treat

Frequently Asked Questions

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

Yes, they store well and can be made 1–2 days in advance.

How do I get gooey marshmallows?

Bake just until puffed, then optionally broil for a few seconds.

Can I use large marshmallows instead of mini?

Yes, but cut them in half for even melting.

Why are my bars crumbly?

Too much flour or overbaking can cause dryness. Measure carefully and don’t overbake.

Ready to Make It?

These S’mores Cookie Bars are gooey, chocolatey, and full of nostalgic campfire flavor. They’re easy to make, fun to share, and guaranteed to disappear fast.

You Might Also Like

• Brown Sugar Butter Cookies – Soft, rich cookies with deep caramel flavor from brown sugar.
• Chocolate Chip Muffins – Light, tender muffins filled with melty chocolate in every bite.
• Classic Overnight Oats – Easy, healthy, and perfect for quick breakfasts.
• Veggie Egg Muffins – Protein-packed meal-prep breakfast bites made with fresh vegetables.

Print