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Chocolate Marshmallow Christmas Bars Recipe

4.8 from 94 reviews

These festive Christmas Bars combine a rich chocolate base with gooey marshmallows, sweetened condensed milk, and chocolate chips to create a chewy and delightful treat perfect for holiday celebrations. With a crunchy graham cracker crust and optional nuts for added texture, these bars are an easy-to-make dessert that will impress family and friends.

Ingredients

Scale

Base Ingredients

  • 2 cups (200 g) graham cracker crumbs
  • ¼ cup (25 g) unsweetened cocoa powder
  • 1½ cups (180 g) powdered sugar
  • ¾ cup (170 g) unsalted butter, melted (or ¾ cup (150 g) melted coconut oil for dairy-free option)
  • 1 can (14 oz / 397 g) sweetened condensed milk

Mix-ins

  • 3 cups (150 g) mini marshmallows
  • 1½ cups (270 g) chocolate chips (dark, milk, or white)
  • ½ cup (60 g) chopped nuts (optional, walnuts or pecans)

Instructions

  1. Preheat the Oven: Preheat your oven to 350°F (175°C) to ensure even baking and prevent undercooked or overly dry bars.
  2. Mix Dry Ingredients: In a large bowl, whisk together graham cracker crumbs, cocoa powder, and powdered sugar to evenly distribute flavors and break up any lumps.
  3. Add Wet Ingredients: Pour melted butter and sweetened condensed milk into the dry mixture. Stir until a thick, sticky batter forms, ensuring all ingredients are well combined.
  4. Fold in Mix-ins: Gently fold in mini marshmallows, chocolate chips, and optional chopped nuts, being careful not to overmix to keep marshmallows fluffy and evenly distributed.
  5. Spread and Bake: Evenly spread the mixture into a greased baking pan and smooth the top with a spatula. Bake for 25-30 minutes until edges are set and center is slightly firm.
  6. Cool and Cut: Remove from oven and allow to cool completely before cutting into bite-sized squares to serve.

Notes

  • Substitute melted coconut oil for butter to make a dairy-free version.
  • Use white chocolate chips for a different flavor profile.
  • Omit nuts if there are allergies or preferences.
  • Store bars in an airtight container to maintain freshness.
  • Cooling completely before cutting prevents bars from crumbling.

Keywords: Christmas bars, holiday dessert, chocolate bars, marshmallow bars, graham cracker bars, festive treats