Best S’more Cookie Bar Recipe

picture of 3 stacked s'more cookie bars


Units Scale

1/2 cups (1 stick) butter(room temperature)

3/4 cup sugar

1 egg

1 tsp. vanilla extract

1 1/3 cup all-purpose flour

3/4 cup graham cracker crumbs (about 5 graham cracker sheets, crushed)

1 tsp. baking powder

1/4 tsp. salt

4 Hershey milk chocolate bars

1 cup marshmallow crème


  1. Preheat oven to 350 degrees F.
  2. Grease a 9-inch square baking pan. Set aside.
  3. Combine graham cracker crumbs, flour, baking powder, and salt in a medium bowl and mix well. Set aside.
  4. Combine butter and sugar. Mix until fully creamed and smooth. Add in egg and vanilla.
  5. Add dry ingredients to the wet mixture. Make sure to mix well to form a firm dough.
  6. Divide dough in half. Using one of your greased cookie pan, spread and smooth, making sure it is as even as possible.
  7. Place chocolate squares or chocolate chips on top of cookie dough.
  8. With a spatula, place the marshmallow cream on top of the chocolate. Make sure it is spread evenly.
  9. Smooth the remaining dough on the counter, about the size of your 9” baking pan. Place on top of the marshmallow cream.
  10. Place in oven and bake at 350 degrees F for 30 minutes, or until top is golden brown.
  11. Allow to cool before cutting and serving.