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S’mores Cookie Bars Recipe

4.4 from 105 reviews

S’mores Cookie Bars combine the classic flavors of s’mores into a delicious, chewy bar form. A buttery graham cracker and cookie dough base is layered with rich Hershey chocolate pieces and fluffy marshmallow spread, then baked to golden perfection for a gooey, delightful treat perfect for any dessert craving.

Ingredients

Scale

Cookie Dough

  • 1/2 cup softened butter
  • 1/3 cup brown sugar
  • 1/4 cup granulated sugar
  • 1 egg
  • 1 tsp vanilla extract
  • 1 1/2 cups all-purpose flour
  • 1/2 cup finely crushed graham crackers (about 3.5 sheets)
  • 1/4 tsp salt
  • 1/2 tsp baking soda

Layers

  • 5 standard Hershey bars, broken into pieces
  • 1 1/2 cups marshmallow fluff

Instructions

  1. Preheat and prep pan: Preheat your oven to 350°F (175°C) and line an 8×8 inch baking pan with parchment paper to prevent sticking.
  2. Cream butter and sugars: In a mixing bowl, beat the softened butter, brown sugar, and granulated sugar together until the mixture is fluffy and well combined.
  3. Add egg and vanilla: Beat in the egg and vanilla extract until fully incorporated into the creamed mixture.
  4. Combine dry ingredients: Gradually add the all-purpose flour, finely crushed graham crackers, salt, and baking soda to the wet mixture, stirring just until combined to avoid overmixing.
  5. Press dough and chill: Press half of the dough evenly into the prepared baking pan, smoothing the surface. Place the pan in the freezer for about 15 minutes to chill the dough layer.
  6. Add chocolate and marshmallow layers: Break the Hershey bars into pieces and layer them evenly over the chilled dough. Spread the marshmallow fluff evenly over the chocolate pieces.
  7. Top with remaining dough and bake: Carefully flip the remaining half of the dough over the marshmallow layer, covering the filling. Bake in the preheated oven for approximately 25 minutes or until the top is golden brown.
  8. Cool and serve: Allow the bars to cool completely in the pan before lifting out with the parchment paper and slicing into squares for serving.

Notes

  • Chilling the first dough layer helps maintain distinct layers and prevents the marshmallow from mixing into the dough during baking.
  • For easier spreading, warm the marshmallow fluff slightly before layering.
  • Use parchment paper for easy removal and clean-up.
  • Store bars in an airtight container at room temperature for up to 3 days.
  • Cut bars into small squares as they are rich and sweet.

Keywords: s'mores cookie bars, s'mores, Hershey bars, marshmallow fluff, graham cracker cookie bars, easy dessert, summer dessert, baking