S'mores Chocolate Chip Cookie Bars

close up of stacked s'mores cookie bars with more bars around.

S'mores Chocolate Chip Cookie Bars

If you love s'mores, you'll adore these S'mores Cookie Bars! Enjoy the classic campfire treat in a whole new way with sweet marshmallow, rich chocolate, and buttery graham cracker cookie. It's the ultimate indulgence for any sweet tooth!

Course: Dessert

Cuisine: American

Prep Time: 15

Cook Time: 35

Total Time: 50

Servings: bars

Calories: 379kcal

Ingredients

⅞ cup salted butter melted
½ cup granulated sugar
¾ cup brown sugar
2 large eggs room temperature
1 teaspoon vanilla extract
2 cups all purpose flour
1¼ cups graham cracker crumbs
½ teaspoon baking soda
1-1½ cups bittersweet chocolate chips
1 jar marshmallow fluff

Instructions

Heat oven to 350℉/175℃.
Line an 8-inch square pan with parchment paper. Set aside.
In a large bowl, whisk butter and sugars together.
Whisk in eggs and vanilla.
Stir in flour, graham cracker crumbs, and baking soda.
Fold in chocolate chips.
Evenly press about ⅔ of cookie dough in prepared pan.
Spread marshmallow fluff over top.
Sprinkle remaining cookie dough on top.
Press down gently.
Bake for 35 minutes, or until golden brown and cooked through.

Notes

Storing These S'mores Bars:

These S'mores Cookie Bars are incredibly delicious, but they won't last long! Here's how to store them for future enjoyment:

Refrigerator: For longer storage, you can store the bars in an airtight container in the refrigerator for up to a week. The bars will firm up a bit when chilled, but they can be enjoyed cold or warmed up slightly in the microwave.
Freezing: S'mores Cookie Bars freeze well! Let the bars cool completely, then slice them and wrap them individually in plastic wrap. Place the wrapped bars in a freezer-safe container or zip-lock bag. Frozen bars will keep for up to 3 months. Thaw overnight in the refrigerator or at room temperature before enjoying.

Additional Tips:

When freezing individual bars, consider placing a small sheet of parchment paper between them to prevent sticking.
Frozen bars can be enjoyed cold straight from the freezer, or you can warm them up for a gooey, fresh-baked experience. Pop a frozen bar in the microwave for a few seconds on low power, or warm it up in a preheated oven at 350°F for a few minutes. Keep an eye on it to avoid overdoing it!
Room temperature is about 70℉.
1 1/4 cups graham cracker crumbs = 8 graham cracker sheets
Use an oven thermometer to ensure accurate cooking temperatures.

Make It Your Own (Substitutions):
Dietary Restrictions:

Vegan:
- Use vegan butter and substitute the eggs with a flax egg (2 tablespoons ground flaxseed mixed with 6 tablespoons water, let sit for 5 minutes) or aquafaba.
- Ensure the chocolate chips are vegan-friendly.
- Use vegan marshmallow fluff or a homemade vegan version.
Dairy-Free:
- Use dairy-free butter or vegan butter.
- Opt for dairy-free chocolate chips.
- Use dairy-free store-bought marshmallow fluff or a homemade vegan version.
Gluten-Free
- Substitute all-purpose flour with your favorite 1:1 gluten-free flour blend.
- Use store-bought gluten-free graham crackers or a homemade gluten-free version

Additional Ideas:

Chocolate: One of my favorite things is to change up my chocolate in s'mores! We used dark chocolate chips in this recipe, but you can use milk chocolate. You can also use chopped candy bars such-as peanut butter cups or snickers bars!
Nuts: For a nutty twist, add chopped peanuts, pecans, or walnuts to the cookie dough (about ½ cup).
Spices: Add a pinch of ground cinnamon or nutmeg to the cookie dough for a warm, cozy flavor.
Pretzels: Crush some pretzels and sprinkle them on top of the cookie dough before baking for a salty-sweet combination.

Nutrition