S’mores Snickerdoodle Cookie Bars

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Snickerdoodle cookies and s’mores collide in these fun and festive cookie bars, an absolute must make for your Halloween bash! Simply mix up a batch of best-ever snickerdoodle cookie dough, press the dough into a tart pan (or pie pan), and top with chocolate chips and mini marshmallows. Add a shower of cinnamon-sugar and pop the pan in the oven, just in time for the trick-or-treating to begin.

S'mores Snickerdoodle Cookie Bars

Emerging from the oven golden and toasty, with gooey marshmallows, melty chocolate chips, and the aroma of cinnamon-sugar clouds, it’s no wonder kids (and kids at heart!) go crazy for these cookie bars!

S'mores Snickerdoodle Cookie Bars

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S'mores Snickerdoodle Cookie Bars

S’mores Snickerdoodle Cookie Bars



  • 1 1/3 cups flour
  • 1/3 cup graham cracker crumbs (approximately 3 graham cracker sheets, crushed)
  • 1 tsp cream of tartar
  • 1 tsp baking soda
  • 1/4 tsp salt
  • 1/2 cup unsalted butter, at room temperature
  • 1/2 cup sugar
  • 1 large egg, at room temperature
  • 1/2 tsp vanilla extract
  • 1/3 cup semisweet chocolate chips
  • 1/3 cup mini marshmallows


  • 2 Tbsp semisweet chocolate chips
  • 1/4 cup mini marshmallows
  • 2 Tbsp sugar
  • 1 Tbsp graham cracker crumbs
  • 1/2 tsp cinnamon


  1. Preheat oven to 350°F and spray a 9-inch round removable-bottom tart pan (or pie pan) with nonstick spray. Whisk together flour, graham cracker crumbs, cream of tartar, baking soda, and salt in a medium bowl. Beat butter and sugar in a large mixer bowl at medium speed until creamy; beat in egg and vanilla until combined. Reduce speed to low and gradually add flour mixture; beat just until incorporated. Fold in chocolate chips and mini marshmallows.
  2. Scrape dough into prepared pan and use a piece of parchment paper lightly coated with nonstick spray to press dough evenly into pan. Top with remaining chocolate chips and mini marshmallows, pressing slightly into dough. Combine sugar, graham cracker crumbs, and cinnamon in a small bowl; sprinkle over the top.
  3. Bake for about 25 minutes, until top is golden and set, and a toothpick inserted in the center comes out mostly clean. Cool in pan on a wire rack for at least 2 hours before slicing and serving.


  • Calories: 200
  • Carbohydrates: 28

Keywords: S'mores, Snickerdoodle, Cookie Bar

More cookie bars you’ll love:

Chocolate Chip Nutella Cookie Bars
Salted Double Chocolate Cookie Bars
Baklava Cookie Bars

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  1. Laura, tried these bars tonight and they were really good. They were not overly sweet and had a nice blend between a smoore and snickerdoodle. Thanks for sharing. Really great.

  2. These look amazing, I’ve heard of snickerdoodles, but I didn’t really know what they were.

    Another delicious recipe Laura!

  3. I’ll happily give out candy at my front door, but I’d have to think twice about sharing these these fabulous cookie bars! Just fabulous!

  4. Oh my Laura – these look absolutely scrumptious and I can practically smell all that cinnamon-y goodness (I am a cinnamon fanatic. . .so it’s hard for me to control myself) just drooling.. .er. . .looking at the photos. 😉

  5. These are so exciting Laura. Literally, all of my favorite things in one. Life Goal: for us to bake together!!! xoxox

  6. These are just the prettiest cookie bars Laura! I love the snickerdoodle/s’mores combo. I bet they’re delicious!