Go Back
A s'mores cookie bar.
Print Recipe
4.50 from 6 votes

S'mores Cookie Bars

These S'mores Cookie Bars are absolutely amazing! Layers of graham cracker cookie dough, Hershey's chocolate bars, and marshmallow creme bake up chewy and delicious.
Prep Time20 minutes
Cook Time35 minutes
Cooling Time4 hours
Course: Dessert
Cuisine: Bars
Keyword: s'mores
Servings: 16 bars

Ingredients

  • 3/4 cup Butter softened
  • 3/4 cup Brown Sugar
  • 1/3 cup Granulated Sugar
  • 1 Egg
  • 2 teaspoons Vanilla Extract
  • 9 Graham Crackers crushed, about 1.25 cups crumbs
  • 1.5 cups Flour
  • 1 teaspoon Baking Powder
  • 1/2 teaspoon Salt
  • 6 Hershey Bars 1.55 oz each, see note
  • 7 oz Marshmallow Creme

Instructions

  • Preheat the oven to 350 degrees. Crush or blend the graham crackers into crumbs.
  • In the bowl of a stand mixer, cream together the butter and sugars. Add egg and vanilla and mix well.
  • Add the graham cracker crumbs, flour, baking powder, and salt. Mix until a crumbly dough forms.
  • Line a 9x9 inch baking pan with parchment paper. Press 2/3 of the cookie dough into the pan.
  • Unwrap six Hershey bars and layer them over the cookie dough (there will be a few extra pieces of chocolate). Spoon the marshmallow creme over the chocolate bars and spread it out. Then sprinkle the remaining cookie dough over the marshmallow creme and press down gently. Break up and sprinkle on any remaining chocolate.
  • Bake for 30-35 minutes until edges are browning, top is golden, and marshmallow creme that is visible looks toasty.
  • Remove from the oven and allow to cool completely, at least four hours, before serving. Use the parchment paper to remove the bars from the pan before slicing. (It can be helpful to place the bars in the fridge for about 20 minutes first.)
  • Store covered at room temperature for up to three days.

Notes

For a stronger chocolate flavor, you can use three 4.4 oz Hershey bars instead of six 1.55 oz bars.