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S’mores Cookie Bars

  • Author: Sally Thompson
  • Prep Time: 15 minutes
  • Cook Time: 20 minutes
  • Total Time: 35 minutes
  • Yield: 16 bars 1x

Description

S’mores Cookie Bars combine all the flavors of a classic campfire treat into an easy-to-make layered dessert. With a buttery graham cracker cookie base, melty chocolate, and gooey marshmallows, these bars are perfect for parties, potlucks, or anytime you’re craving a nostalgic sweet treat.


Ingredients

Scale
  • 1/2 cup (1 stick) unsalted butter, softened
  • 1/2 cup granulated sugar
  • 1/2 cup brown sugar, packed
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1 1/4 cups all-purpose flour
  • 3/4 cup graham cracker crumbs
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 23 milk chocolate bars (about 6 oz) or 1 cup milk chocolate chips
  • 1 1/2 cups mini marshmallows

Instructions

  1. Preheat the oven to 350°F (175°C). Line a 9×9-inch baking pan with parchment paper, leaving an overhang on the sides. Lightly grease the parchment.

  2. Cream the butter and sugars in a large bowl until light and fluffy. Add the egg and vanilla extract, mixing until combined.

  3. Whisk the dry ingredients—flour, graham cracker crumbs, baking soda, and salt—in a separate bowl.

  4. Gradually combine the dry ingredients with the wet mixture until a soft dough forms.

  5. Press two-thirds of the dough evenly into the prepared baking pan.

  6. Layer the chocolate over the cookie base, followed by an even layer of mini marshmallows.

  7. Flatten pieces of the remaining dough and place over the top of the marshmallows, covering as much as possible.

  8. Bake for 20–25 minutes, or until golden brown and the edges are set.

  9. Cool completely in the pan before lifting out and slicing into bars.