Imagine biting into a warm, gooey S’more Cookie Bar that oozes chocolate and marshmallow goodness. The combination of rich flavors, soft textures, and that toasty aroma is like summer camp memories wrapped in a delicious package. You know the kind—the ones that make you feel like a kid again, while simultaneously making your adult self consider how many calories you’re about to indulge in.

These S’more Cookie Bars are not just a treat; they are an experience. Picture this: it’s a cozy evening with friends, laughter fills the air, and someone pulls out a tray of these bars. Suddenly, you’re the hero of the night! With every bite, you’ll transport yourself to a campfire under the stars while simultaneously avoiding actual outdoor camping—because who wants to deal with mosquitoes? Let’s dive in.
Why You'll Love This Recipe
- These S’more Cookie Bars are incredibly easy to whip up, perfect for any occasion
- Their mouthwatering flavor will have everyone begging for seconds
- Visually appealing with layers of chocolate and marshmallows, they look as good as they taste
- You can enjoy them warm or cold—perfectly versatile for any dessert setting
There was that one time I made these S’more Cookie Bars for my niece’s birthday party. The moment she took a bite, her face lit up like it had just been hit by fireworks. It was a small victory in my baking career but made me realize how much joy food can bring.
Essential Ingredients
Here’s what you’ll need to make this delicious dish:
- Unsalted Butter: Always use unsalted butter for better control over the saltiness of your bars.
- Brown Sugar: The brown sugar adds moisture and that lovely caramel flavor we all love.
- Granulated Sugar: This helps balance the sweetness alongside brown sugar for perfect flavor.
- Large Eggs: Use room temperature eggs for better consistency when mixing.
- All-Purpose Flour: Regular flour works best; no fancy substitutions needed here!
- Baking Powder: This lightens the texture to keep your bars fluffy and delightful.
- Chocolate Chips: Semi-sweet chocolate chips are ideal, but feel free to mix it up with milk chocolate if you prefer.
- Mini Marshmallows: They melt beautifully and create those gooey pockets of goodness throughout your bars.
- Graham Cracker Crumbs: These add that classic S’mores flavor—don’t skip this step!
The full ingredients list, including measurements, is provided in the recipe card directly below.

How to Make S’more Cookie Bars
Preheat Your Oven: Start by preheating your oven to 350°F (175°C). Grease or line a 9×13-inch baking pan with parchment paper for easy removal later.
Create Your Cookie Dough Base: In a large bowl, cream together the softened butter with brown sugar and granulated sugar until it’s light and fluffy. You’ll know it’s ready when it looks like clouds!
Add Eggs and Dry Ingredients: Mix in the eggs one at a time until fully incorporated. Then add flour, baking powder, and salt gradually while mixing until everything comes together smoothly.
Toss in Chocolate Chips and Grahams: Gently fold in those chocolate chips along with graham cracker crumbs into your dough mixture. Be careful not to overmix—think gentle hugs instead of bear hugs!
Layering Time!: Spread half of your cookie dough into the prepared baking pan evenly. Next, sprinkle mini marshmallows over this layer followed by more chocolate chips for ultimate indulgence.
Add Final Layer & Bake : Spread the remaining cookie dough on top of everything like a comforting blanket. Bake in your preheated oven for 25-30 minutes or until golden brown on top but still soft inside—the smell will be irresistible!
Now just let them cool slightly before cutting into squares…and try not to eat them all at once! Enjoy every last crumb because you deserve it.
You Must Know
- S’more Cookie Bars bring campfire nostalgia to your kitchen
- The gooey marshmallow, rich chocolate, and crunchy graham cracker layers create a delightful treat that’s easy to make
- These bars are perfect for parties or cozy nights in, satisfying your sweet cravings in every bite
Perfecting the Cooking Process
Start by preheating your oven to 350°F. Prepare the crust first while mixing the cookie dough. This sequence saves time and ensures everything bakes evenly together.
Add Your Touch
Feel free to swap out semi-sweet chocolate for dark chocolate or add nuts for a crunchier texture. Customize the bars based on your preferences for a unique twist.
Storing & Reheating
Store leftover S’more Cookie Bars in an airtight container at room temperature for up to five days. For a warm treat, reheat in the microwave for 10-15 seconds.
Chef's Helpful Tips
- Use fresh marshmallows for better flavor and chewiness; store them properly to prevent drying out
- Ensure even baking by spreading the cookie dough uniformly in the pan
- Don’t skip chilling the bars before cutting; this step prevents messy edges and keeps them intact
I remember making S’more Cookie Bars for a family gathering, and they disappeared faster than I could say “marshmallow.” Everyone loved them, and I felt like a superstar chef that day!
FAQ
Can I use gluten-free flour for S’more Cookie Bars?
Yes, substituting with gluten-free flour works well without compromising taste.
How do I prevent the marshmallows from burning?
Cover the bars with aluminum foil during baking if they brown too quickly.
What’s the best way to cut these cookie bars?
Use a sharp knife dipped in hot water to get clean cuts without sticking.
S’more Cookie Bars
S’more Cookie Bars are the ultimate indulgence, combining layers of gooey marshmallows, rich chocolate, and crunchy graham crackers in a soft cookie base. Perfect for any occasion, these bars evoke nostalgic campfire memories while being incredibly easy to make. Enjoy warm or chilled; they’re guaranteed to impress family and friends alike.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: Approximately 12 servings 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
- 1 cup unsalted butter (softened)
- 1 cup brown sugar
- 1/2 cup granulated sugar
- 2 large eggs (room temperature)
- 2 cups all-purpose flour
- 1 tsp baking powder
- 1 cup semi-sweet chocolate chips
- 1 cup mini marshmallows
- 1 cup graham cracker crumbs
Instructions
- Preheat oven to 350°F (175°C) and grease a 9×13-inch baking pan.
- In a large bowl, cream together softened butter, brown sugar, and granulated sugar until fluffy.
- Add eggs one at a time, mixing until fully incorporated.
- Gradually mix in flour, baking powder, and salt until smooth.
- Fold in chocolate chips and graham cracker crumbs gently.
- Spread half of the cookie dough into the prepared pan, then layer with mini marshmallows and additional chocolate chips.
- Top with the remaining cookie dough and bake for 25-30 minutes until golden brown but soft inside.
- Cool slightly before slicing into squares.
Nutrition
- Serving Size: 1 bar (75g)
- Calories: 320
- Sugar: 24g
- Sodium: 180mg
- Fat: 16g
- Saturated Fat: 10g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 44g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 45mg
Keywords: - Use fresh marshmallows for better flavor. - For variations, swap semi-sweet chocolate for dark chocolate or add nuts for added crunch.







