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s'more cookie bars stacked featured image

S’mores Cookie Bars

S’mores Cookie Bars are a delicious and easy treat this summer and fall! Perfect for a crowd or just a delicious dessert after dinner!
Course Dessert
Cuisine American
Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes
Servings 20 bars
Calories 348kcal
Author Lisa


  • 1 cup butter slightly softened
  • ¾ cup white sugar*
  • 1 ½ cups brown sugar*
  • 1 teaspoon vanilla
  • 2 large eggs
  • 2 ¼ cups flour*
  • 1 teaspoon baking soda
  • 1 teaspoon salt
  • 1 box vanilla or white chocolate instant pudding mix ~3.4 oz*
  • 1 ½ cup crushed graham crackers about 8 full graham crackers
  • 2 ½ cups mini marshmallows
  • 1 ½ cups milk chocolate chips


  • If you live at high altitude see baking notes below for adjustments! *
  • Preheat oven to 375°F and spray a 9x13* cake pan or dish with non-stick spray
  • In a mixer or with a hand mixer and the paddle attachment, mix together the butter, white sugar, brown sugar, and vanilla. (1 cup butter, ¾ cup white sugar, 1 ½ cups brown sugar, 1 teaspoon vanilla)
    creamed butter and sugar
  • Add in each egg, on at a time. Mix in each egg completely before adding the next. The mixture should get lighter in color and thicker.
    mixed in the flour mixture to cookie dough
  • In a small bowl mix together the flour, salt, baking soda, instant pudding, graham crackers. (2 ¼ cups flour, 1 teaspoon salt, 1 teaspoon baking soda, 1 box instant pudding mix, 1 ½ cup crushed graham crackers)
    flour mixture mixed
  • Add flour mixture to the butter mixture and mix on medium high until fully incorporated.
    mixed in the flour mixture to cookie dough
  • Stir in by hand the chocolate chips, part of the mini marshmallow, the chopped Hershey Bars. (1 ½ cups milk chocolate chips, 2 ½ cups mini marshmallows, 3 chopped Hershey candy bars)
    stirring in mini marshmallows and chocolate chips to batter
  • Place dough into the prepared baking dish* and bake for 20-25 minutes. You want the edges to look a little brown and the center baked through.
    cookie in pan before baking
  • Allow to cool and enjoy!
    cookie dough batter after baking



Helpful Tips and Tricks
  • *For high altitude adjustments: decrease white sugar to ⅔ cup, decrease brown sugar to ⅔ cup, increase flour to 2 ½ cups and add 2 teaspoon of water.
  • *If you want cookie bars that aren’t as thick bake in a 13x18 sheet pan like I did for my chocolate chip cookie bar recipe!
  • *Use the small box of instant pudding mix- they sometimes vary in sizes depending on the brand but you want a box that is between 3-4 oz.
  • Press more mini marshmallows and chocolate on top of the bars before baking for pretty bars.


Calories: 348kcal | Carbohydrates: 54g | Protein: 3g | Fat: 14g | Saturated Fat: 8g | Cholesterol: 43mg | Sodium: 330mg | Potassium: 58mg | Fiber: 1g | Sugar: 37g | Vitamin A: 338IU | Vitamin C: 1mg | Calcium: 42mg | Iron: 1mg