S’mores Cookie Bars are an easy and delicious sheet pan dessert recipe. Feed a crowd with this tasty marshmallow, chocolate, and graham cracker treat!

Smores cookie bars on a plate

These S’more Cookies Bars are a great way to get your campfire fix without the fire. These gooey bars are so simple and satisfying to eat.

If you love s’mores, you’re going to love this recipe for S’mores Fudge!

If you need to feed a crowd, or are looking for an update to your cookie recipe, this is it! These super tasty bars are moist and gooey from all of the melted marshmallow. Perfect treat for potlucks, parties, or cookie exchanges. Moreover, you can make these in advance and freeze them until you need them.

Because these make so many bars, they are perfect for kids parties and teacher appreciation events as well. Be sure to let these cool completely before cutting. Because they are a sticky bar, they will be much easier to cut into squares when they are well chilled.

Smores cookie bars on a white plate

Love sheet pan desserts? Check out my favorite recipes below!

Preheat oven to 350 degrees. Line a baking sheet, like this Nordic Ware Commercial Baker’s Half Sheet with parchment paper and spray with cooking spray. Set aside.

Firstly, cream together the butter, sugar, eggs, and vanilla. This can be done in a stand up mixer, or using hand mixer. There will be a lot of batter with this recipe, so a stand up mixer is recommended if you have one.

overhead view of stand up mixer with batter, eggs, and vanilla.

Then, add in the flour, baking powder, and salt. No need to mix ahead in a separate bowl. The dry ingredients can go right in with the wet.

overhead photo of batter in the stand up mixer.

Then, fold in the chocolate chips and marshmallows. Here I use an entire bag of marshmallows and chocolate chips. Remember, this recipe feeds a lot of people!

batter in mixer with chocolate chips and marshmallows blended in.

Finally, spread the mixture on to the greased parchment-lined baking sheet and press down using a rubber spatula or damp hands.

S'mores cookie batter on a lined sheet pan.

Lastly, sprinkle on the crushed graham crackers and gently press to adhere.

s'mores cookie batter spread on a baking sheet and topped with graham cracker.

Bake the cookies for about 20-25 minutes. You want the top of the bars to be just a light golden brown. Let the bars cool, then remove with parchment and cut into squares.

smores cookie bars made on a baking sheet

Easy Sheet Pan Dessert Recipes

Feeding a crowd couldn’t be easier or more delicious than using your trusty sheet pan for baking. No matter the season or the occasion, save time by cooking up one of these large batch dessert recipes in your sheet pan!

Hope you love this recipe for S’mores Cookie Bars. Please comment below and let me know if you loved them. Enjoy!

S'mores cookie bars on a plate

S’mores Cookie Bars

Delicious and easy, these S’mores Cookie Bars are great for feeding a crowd! 
5 from 9 votes
Print Pin Rate
Course: Dessert
Cuisine: American
Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40 minutes
Servings: 40 bars
Calories: 194kcal


  • 1 cup butter, softened
  • 3 cups brown sugar
  • 4 large eggs
  • 2 teaspoons vanilla
  • 3 cups flour
  • 1 teaspoon baking powder
  • 1 teaspoon salt
  • 1 12 ounce bag chocolate chips
  • 1 10 ounce bag mini marshmallows
  • 5 sheets graham crackers, slightly crushed


  • Preheat oven to 350 degrees. Line a baking sheet with parchment paper and spray paper with cooking spray. 
    Sheet pan lined with parchment paper.
  • In a large bowl, cream together the butter and sugar. Add in the eggs and vanilla and mix with hand mixer until combined. Sift in the flour, baking powder, and salt and mix to combine. Fold in the chocolate chips and marshmallows. 
    batter in mixer with chocolate chips and marshmallows blended in.
  • Pour the batter into the prepared pan and spread with rubber spatula or damp hands. Sprinkle on the crushed graham crackers.
    s'mores cookie batter spread on a baking sheet and topped with graham cracker.
  • Bake for 25-30 minutes until lightly golden brown. Cool on wire rack for 15 minutes before using parchment to lift out of pan. Cool completely before cutting.
    s'mores cookie bars made on a baking sheet



Make ahead and store in an airtight container in the refrigerator for up to a week. 


Calories: 194kcal
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S'Mores Cookie Bars.

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Recipe Rating


  1. 5 stars
    So good! Made them for dessert for church dinner, everyone loved them! Making now for my Bible study group!💕

  2. Can these be kept at room temperature for a few days? I need a non-refrigerated dessert for a school baking contest.

    1. Yes. You can keep them in an airtight container at room temperature for three days. Hope you love them!

  3. 5 stars
    My kids and I love S’mores year round! These bars are perfect to make when we don’t have a campfire for roasting marshmallows! These bars are Oort gooey good!

  4. 5 stars
    Omg these cookie bars were absolutely amazing!! So decadent and rich and were the perfect sweet treat after dinner today! Yum!

  5. 5 stars
    What a fun spin on s’mores for the summer season! Those chunks of chocolate have me drooling – so good!