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S’mores Magic Cookie Bars Recipe

4.9 from 135 reviews

S’mores Magic Cookie Bars combine the classic campfire flavors of chocolate, marshmallows, and graham crackers into an easy-to-make, indulgent bar. Featuring a rich cocoa-flavored graham cracker crust, layers of semi-sweet chocolate chips, mini marshmallows, and optional nuts, all drizzled with sweetened condensed milk and topped with melting mini chocolate chips, these bars are a perfect treat for parties, potlucks, or anytime you crave a nostalgic, gooey dessert.

Ingredients

Scale

Crust Ingredients

  • 1 1/2 cups graham cracker crumbs (about 1012 full sheets)
  • 1/2 cup unsweetened cocoa powder
  • 1/2 cup unsalted butter, melted
  • 1/2 cup granulated sugar

Filling Ingredients

  • 1 cup semi-sweet chocolate chips
  • 1 cup mini marshmallows
  • 1/2 cup chopped nuts (optional, such as walnuts or pecans)
  • 1 can (14 ounces) sweetened condensed milk
  • 1/2 cup mini chocolate chips (for topping)

Instructions

  1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish or line it with parchment paper for easy removal of the bars.
  2. Make the Crust: In a medium bowl, combine graham cracker crumbs, unsweetened cocoa powder, melted butter, and granulated sugar. Mix well until fully combined. Press this mixture evenly into the bottom of the prepared baking dish to form a firm crust.
  3. Layer the Filling: Evenly sprinkle the semi-sweet chocolate chips over the crust layer. Next, distribute the mini marshmallows across the chocolate chips. If using, sprinkle the chopped nuts on top of the marshmallows for added texture and flavor.
  4. Pour Sweetened Condensed Milk: Slowly pour the sweetened condensed milk evenly over the entire layered mixture, making sure to cover as much of the marshmallows and chocolate chips as possible to bind the layers together while baking.
  5. Bake: Place the baking dish in the preheated oven and bake for 25 to 30 minutes, or until the edges turn golden brown and the marshmallows are toasted. About 5 minutes before the baking is complete, sprinkle the mini chocolate chips on top and return to the oven until they melt and become glossy.
  6. Cool and Cut: Remove the bars from the oven and allow them to cool in the pan for at least 30 minutes to set. Once cooled, lift the bars out using the parchment paper if lined, then cut them into squares or rectangles as desired for serving.

Notes

  • You can add peanut butter chips or white chocolate chips for a different flavor variation.
  • Use chocolate graham crackers as an alternative to regular graham crackers for a more intense chocolate taste.
  • Before serving, top with crushed graham crackers or extra marshmallows for additional texture and flavor.
  • Store leftover bars in an airtight container at room temperature for up to 4 days, or refrigerate for up to a week.
  • Bars can be frozen for up to 3 months when wrapped tightly in plastic wrap and stored in an airtight container.

Keywords: s’mores bars, magic cookie bars, graham cracker bars, chocolate marshmallow dessert, easy dessert bars, campfire treat, semi-sweet chocolate, condensed milk bars