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Gooey S'mores Cookie Bars

Thick, chewy cookie bars featuring a buttery graham cracker dough filled with layers of melting chocolate and gooey marshmallow crème. No campfire required.
Print Recipe
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Servings: 24 bars
Course: Dessert, Snack
Cuisine: American
Calories: 320
Ingredients Equipment Method Notes

Ingredients
  

Graham Cookie Dough
  • 1 cup unsalted butter softened
  • 1 cup light brown sugar packed
  • 0.5 cup granulated sugar
  • 2 eggs large
  • 2 tsp vanilla extract
  • 2.5 cups all-purpose flour
  • 1.5 cups graham cracker crumbs about 12 sheets
  • 1 tsp baking powder
  • 0.5 tsp salt
Filling
  • 2 cups semi-sweet chocolate chips or 3 chocolate bars
  • 7 oz marshmallow creme 1 jar, or fluff

Equipment

  • 9x13 Baking Pan
  • Stand Mixer or Hand Mixer
  • Mixing bowls
  • Parchment paper

Method
 

  1. Preheat oven to 350°F (175°C). Line a 9x13 inch baking pan with parchment paper and lightly spray with cooking spray.
  2. In a medium bowl, whisk together flour, graham cracker crumbs, baking powder, and salt.
  3. In a large mixer bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy (about 2-3 minutes).
  4. Add eggs one at a time, beating well after each. Stir in the vanilla extract.
  5. Gradually mix in the dry ingredients on low speed until just combined.
  6. Press about 2/3 of the dough firmly into the bottom of the prepared pan to form a crust.
  7. Sprinkle chocolate chips evenly over the crust layer.
  8. Drop spoonfuls of marshmallow creme over the chocolate. Do not worry about spreading it perfectly.
  9. Flatten pieces of the remaining dough with your hands and place them on top of the marshmallow layer, leaving some gaps for the filling to peek through.
  10. Bake for 25-30 minutes or until the top is golden brown. Cool completely before cutting.

Notes

Ensure bars are fully cooled before cutting for clean squares.