S’mores Cookie Bars are a delightful treat that combines the classic flavors of s’mores in a convenient bar format. Perfect for gatherings, potlucks, or simply enjoying at home, these bars bring a nostalgic taste of summer to any occasion. The layers of graham crackers, gooey marshmallows, and rich chocolate create a mouthwatering experience that’s sure to please everyone.
Why You’ll Love This Recipe
- Easy to Make: With simple steps and everyday ingredients, you can whip up these delicious bars in no time.
- Crowd-Pleaser: These cookie bars are perfect for parties, picnics, or family gatherings. Everyone loves s’mores!
- Customizable: Feel free to add your favorite mix-ins like nuts or different types of chocolate for a twist.
- No Campfire Needed: Enjoy the classic flavors of s’mores anytime without needing a fire pit.
- Great for Meal Prep: Bake a batch ahead of time for quick snacks or desserts throughout the week.
Tools and Preparation
Before diving into making S’mores Cookie Bars, gather your tools. Having everything ready will make the process smoother and more enjoyable.
Essential Tools and Equipment
- Electric mixer
- 13×9-inch baking pan
- Parchment paper
- Mixing bowls
- Whisk
Importance of Each Tool
- Electric mixer: Saves time and effort when creaming butter and sugars together.
- 13×9-inch baking pan: The perfect size for these cookie bars, ensuring even baking.
- Parchment paper: Makes it easy to lift the bars out once they’re cooled, preventing sticking.
Ingredients
S’mores Cookie Bars are layered with graham crackers, cookie dough with marshmallows, and topped with chocolate bar pieces.
For the Base
- 7-8 graham crackers (full sheets/unbroken rectangles)
- 1 cup unsalted butter (2 sticks) room temperature
- ¾ cup granulated sugar
- ¾ cup light brown sugar (gently packed)
- 2 large eggs
- 2 tsp vanilla extract
For the Dry Mixture
- 3 cups all-purpose flour (stir, spoon, & level)
- ¾ tsp salt
- ¾ tsp baking soda
For the Mix-ins
- ½ cup semi-sweet chocolate chips
- 1 cup mini marshmallows
For the Topping
- 2 regular sized Hershey’s Milk Chocolate Bars (two 1.55oz/43g bars) broken into squares
How to Make S’mores Cookie Bars
Step 1: Preheat the Oven
Preheat oven to 375 degrees Fahrenheit. Line a 13×9-inch pan with parchment paper, leaving a 2-inch overhang on the sides.
Step 2: Prepare the Graham Cracker Base
Place graham crackers in a layer covering the full pan, breaking them into sections as needed to fit properly.
Step 3: Cream Butter and Sugars
In the bowl of an electric mixer with the paddle attachment:
1. Cream together the butter and both sugars until light and fluffy.
2. Add eggs and vanilla extract; mix well and scrape down the bowl.
Step 4: Combine Dry Ingredients
In a large bowl:
1. Whisk together flour, salt, and baking soda.
2. Gradually add this mixture to the butter mixture along with chocolate chips and mini marshmallows.
3. Mix until just combined; do not overmix.
Step 5: Assemble the Bars
Evenly distribute the dough on top of the prepared graham cracker layer. Press it down flat. Optionally, top with additional mini marshmallows.
Step 6: Bake
Bake at 375˚F for 25-30 minutes or until golden brown. A toothpick inserted should come out clean from the center. If needed, cover with foil if edges brown too quickly.
Step 7: Add Chocolate Topping
Remove from oven and place chocolate bar pieces on top while still warm. Allow cooling for 20-30 minutes before lifting bars out of pan to cut and serve. Note that chocolate may remain soft at room temperature.
Enjoy your homemade S’mores Cookie Bars!
How to Serve S’mores Cookie Bars
S’mores Cookie Bars are a delicious treat that can be enjoyed in various ways. Whether you’re hosting a gathering or just indulging with family, here are some great serving suggestions to enhance your experience.
With Ice Cream
- Vanilla Ice Cream: The classic pairing of creamy vanilla ice cream beautifully complements the sweet and gooey bars.
- Chocolate Chip Ice Cream: For chocolate lovers, this adds an extra layer of flavor and decadence.
As a Dessert Platter
- Mix with Fresh Fruits: Serve alongside strawberries, raspberries, or banana slices for a refreshing contrast to the rich cookie bars.
- Pair with Whipped Cream: A dollop of whipped cream on top adds an airy texture that lightens the dessert.
For a Campfire Vibe
- Serve Warm: Place the bars on a plate and warm them slightly in the microwave before serving to mimic that campfire feel.
- Garnish with Toasted Marshmallows: Top each bar with mini marshmallows and give them a quick toast for added flavor.
With Coffee or Milk
- Fresh Brewed Coffee: A cup of coffee balances the sweetness of the bars, making it perfect for adults.
- Milk: A classic choice, milk is always a favorite for kids and enhances the overall experience.

How to Perfect S’mores Cookie Bars
To ensure your S’mores Cookie Bars come out perfectly every time, follow these handy tips.
- Use Room Temperature Ingredients: Ensuring your butter and eggs are at room temperature creates a smoother dough.
- Don’t Overmix the Dough: Mix until just combined to keep the bars soft and chewy, avoiding toughness.
- Press Down Firmly: When spreading the dough over graham crackers, press it down firmly to create an even layer.
- Watch Baking Time Closely: Ovens can vary; keep an eye out after 25 minutes to prevent over-baking.
- Cool Before Cutting: Allowing the bars to cool completely ensures clean cuts and prevents messiness when serving.
Best Side Dishes for S’mores Cookie Bars
Pairing side dishes with S’mores Cookie Bars can create a delightful meal. Here are some options that work well together.
- Fruit Salad: A refreshing mix of seasonal fruits balances out the sweetness of the cookie bars.
- Chocolate Fondue: Melted chocolate served with dippable fruits or marshmallows enhances the dessert experience.
- Cheese Platter: A selection of cheeses provides a savory contrast that complements sweet flavors nicely.
- Mini Pretzels: The salty crunch adds texture and offsets the sweetness of the S’mores Cookie Bars.
- Ice Cream Sundae Bar: Set up a build-your-own sundae station for fun customization alongside your cookie bars.
- Roasted Nuts: A bowl of mixed nuts offers a crunchy snack option that pairs well with desserts.
Common Mistakes to Avoid
To make the perfect S’mores Cookie Bars, avoid these common mistakes that can lead to less-than-ideal results.
- Overmixing the Dough: Mixing too much can create tough bars. Combine ingredients just until mixed for a soft texture.
- Not Measuring Ingredients Correctly: Use the scoop and level method for flour to ensure accuracy. Too much flour can make your bars dry.
- Skipping Parchment Paper: Not lining your pan can result in sticky bars that are difficult to remove. Always use parchment paper for easy lifting.
- Ignoring Cooling Time: Cutting into the bars too soon can lead to messy servings. Allow them to cool in the pan before slicing for clean edges.
- Using Cold Butter: Cold butter won’t cream well with sugars, affecting texture. Ensure your butter is at room temperature for best results.
Storage & Reheating Instructions
Refrigerator Storage
- Store S’mores Cookie Bars in an airtight container for up to 5 days.
- Place parchment paper between layers if stacking to prevent sticking.
Freezing S’mores Cookie Bars
- Freeze bars in an airtight container or wrap them tightly in plastic wrap for up to 3 months.
- Thaw in the refrigerator overnight before serving.
Reheating S’mores Cookie Bars
- Oven: Preheat to 350°F and warm bars for about 10 minutes until heated through.
- Microwave: Heat individual bars on a microwave-safe plate for 15-20 seconds. Watch closely to avoid melting completely.
- Stovetop: Place a bar in a skillet over low heat, covering with a lid for about 5 minutes until warmed.
Frequently Asked Questions
Here are some frequently asked questions about making and enjoying S’mores Cookie Bars.
Can I make S’mores Cookie Bars gluten-free?
Yes! Substitute regular flour with a gluten-free flour blend to enjoy these delicious cookie bars without gluten.
How do I store leftover S’mores Cookie Bars?
Store them in an airtight container at room temperature or refrigerate for longer freshness.
Can I add nuts or other toppings?
Absolutely! Feel free to mix in nuts, chocolate chunks, or even caramel swirls for added flavor and texture.
How long do S’mores Cookie Bars last?
When stored properly, they can last up to 5 days at room temperature or up to 3 months in the freezer.
Final Thoughts
S’mores Cookie Bars are a delightful treat that combines classic flavors with easy preparation. Their versatility allows you to customize them with various mix-ins or toppings, making them perfect for any occasion. Give this recipe a try and enjoy the deliciousness of these gooey, sweet bars!
S’mores Cookie Bars
S’mores Cookie Bars are the ultimate sweet treat that brings together the beloved flavors of traditional s’mores in a convenient, easy-to-serve bar format. These gooey bars feature layers of crunchy graham crackers, rich chocolate, and fluffy marshmallows. Whether you’re hosting a summer get-together, enjoying a cozy movie night at home, or looking for a delicious dessert to share at potlucks, these cookie bars are sure to delight both kids and adults alike. With their simple preparation and customizable options, you can whip them up quickly and enjoy that nostalgic campfire flavor anytime—no fire pit required!
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: Serves approximately 12 bars 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
- 7–8 graham crackers
- 1 cup unsalted butter
- ¾ cup granulated sugar
- ¾ cup light brown sugar
- 2 large eggs
- 3 cups all-purpose flour
- ½ cup semi-sweet chocolate chips
- 1 cup mini marshmallows
- 2 Hershey's Milk Chocolate Bars
Instructions
- Preheat the oven to 375°F and line a 13×9-inch baking pan with parchment paper.
- Layer the graham crackers in the bottom of the pan.
- In an electric mixer, cream together the butter and sugars until fluffy. Add eggs and vanilla; mix well.
- In another bowl, whisk together flour, salt, and baking soda. Gradually add this mixture to the creamed mixture along with chocolate chips and marshmallows.
- Spread the dough over the graham cracker layer and press down evenly.
- Bake for 25-30 minutes until golden brown; add chocolate pieces on top while warm.
- Cool for about 20 minutes before cutting into squares.
Nutrition
- Serving Size: 1 cookie bar (70g)
- Calories: 310
- Sugar: 24g
- Sodium: 140mg
- Fat: 15g
- Saturated Fat: 9g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 40g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 50mg





