Print

S’mores Cookie Bars Recipe

Print Recipe

★★★★★

4.9 from 558 reviews

These S’mores Cookie Bars combine all the classic flavors of a campfire treat into a convenient, oven-baked dessert bar. Butter, brown sugar, and vanilla create a rich cookie base mixed with graham cracker crumbs for that signature crunch. The bars are loaded with semi-sweet chocolate chips and topped with fluffy marshmallow creme, delivering a gooey, chocolatey, and nostalgic treat perfect for any occasion.

Ingredients

Scale

Cookie Base

  • 1/2 cup (8 Tbsp; 113g) unsalted butter, softened to room temperature
  • 3/4 cup (150g) packed light or dark brown sugar
  • 1 large egg, at room temperature
  • 1 teaspoon pure vanilla extract
  • 1 cup (125g) all-purpose flour (spooned & leveled)
  • 1 cup (120g) graham cracker crumbs (about 8 full-sheet graham crackers)
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon salt

Mix-ins and Topping

  • 1 cup (180g) semi-sweet chocolate chips
  • 1 heaping cup marshmallow creme (store-bought “Fluff” or 1/2 recipe of homemade marshmallow creme)

Instructions

  1. Preheat the Oven: Preheat your oven to 350°F (175°C). This ensures the cookie bars will bake evenly from the start.
  2. Mix Butter and Sugar: In a mixing bowl, cream together the softened unsalted butter and brown sugar until light and fluffy. This step incorporates air and makes the cookie base tender.
  3. Add Egg and Vanilla: Beat in the large egg and vanilla extract until fully combined, creating a smooth and cohesive batter.
  4. Combine Dry Ingredients: In a separate bowl, whisk together the all-purpose flour, graham cracker crumbs, baking powder, and salt to distribute the leavening and flavor evenly.
  5. Incorporate Dry Ingredients: Gradually add the dry ingredients into the wet mixture, stirring until just combined to form the cookie dough base.
  6. Add Chocolate Chips: Fold in the semi-sweet chocolate chips to evenly distribute chocolate throughout the cookie dough.
  7. Prepare Baking Pan: Line an 8×8-inch (20x20cm) square baking pan with parchment paper or lightly grease it to prevent sticking.
  8. Spread Dough in Pan: Press the cookie dough evenly into the prepared pan, smoothing the top for an even bake.
  9. Bake: Bake in the preheated oven for 18-22 minutes, or until the edges are golden and the center is set but still soft.
  10. Add Marshmallow Creme: Remove the pan from the oven and immediately spread the marshmallow creme evenly over the top of the warm cookie bars. The residual heat will soften the marshmallow layer.
  11. Cool and Set: Allow the bars to cool completely in the pan on a wire rack so the marshmallow topping firms up slightly for easier slicing.
  12. Slice and Serve: Once cooled, cut into squares and serve. Enjoy the gooey, chocolatey s’mores bars at room temperature for the best texture and flavor.

Notes

  • For a homemade marshmallow creme, you can use homemade marshmallow fluff recipes if desired.
  • Ensure the butter and egg are at room temperature for better mixing and texture.
  • If you prefer a firmer marshmallow topping, cool the bars in the refrigerator for 30 minutes before slicing.
  • Store leftover bars in an airtight container at room temperature for up to 3 days or refrigerate to keep the marshmallow topping intact longer.
  • You can add chopped nuts or substitute chocolate chips with milk or dark chocolate chunks for variations.

Keywords: s'mores cookie bars, marshmallow cookie bars, chocolate chip cookie bars, graham cracker bars, campfire dessert, easy baking dessert

Find it online: https://mjrecipe.com/smores-cookie-bars-recipe/