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Cozy S’mores Brownies Recipe with Crunchy Graham Cracker Crust

cozy s’mores brownies - featured image

A warm, chewy brownie with a crunchy graham cracker crust topped with toasted marshmallows, capturing the classic s’mores flavors in an easy-to-make dessert.

Ingredients

Scale
  • 1 ½ cups graham cracker crumbs (about 10 full sheets, finely crushed)
  • 5 tablespoons unsalted butter, melted
  • 2 tablespoons granulated sugar
  • ¾ cup (170g) unsalted butter, melted
  • 1 ¼ cups (250g) granulated sugar
  • ¾ cup (150g) packed light brown sugar
  • 3 large eggs, room temperature
  • 2 teaspoons pure vanilla extract
  • 1 cup (125g) all-purpose flour (substitute with almond flour for gluten-free option)
  • ¾ cup (75g) unsweetened cocoa powder
  • ½ teaspoon baking powder
  • ½ teaspoon salt
  • 1 cup semi-sweet chocolate chips
  • 2 cups mini marshmallows
  • Optional: ½ cup crushed graham crackers for sprinkling on top

Instructions

  1. Preheat the oven to 350°F (175°C). Line a 9×9-inch baking pan with parchment paper, leaving some overhang for easy removal.
  2. Make the graham cracker crust: In a small bowl, combine graham cracker crumbs, melted butter, and sugar. Stir until mixture holds together when pressed. Press evenly into the bottom of the prepared pan. Bake crust for 8 minutes to set.
  3. Prepare the brownie batter: In a large bowl, whisk melted butter, granulated sugar, and brown sugar until combined. Add eggs one at a time, whisking after each addition, then stir in vanilla extract.
  4. In another bowl, sift together flour, cocoa powder, baking powder, and salt. Slowly fold dry ingredients into wet mixture until no flour streaks remain.
  5. Fold in semi-sweet chocolate chips gently.
  6. Pour batter over the pre-baked graham cracker crust and smooth the surface.
  7. Bake brownies for 25-30 minutes until edges look set and a toothpick inserted near the center comes out with a few moist crumbs.
  8. Remove pan from oven and immediately sprinkle mini marshmallows evenly over brownies. Return to oven for 5-7 minutes until marshmallows turn golden and puff up slightly.
  9. Cool brownies completely in the pan on a wire rack for at least 30 minutes.
  10. Use parchment paper overhang to lift brownies out of pan. Cut into squares with a sharp knife.

Notes

Pre-baking the graham cracker crust prevents sogginess and keeps it crunchy. Use room temperature eggs for better batter consistency. Watch marshmallows closely when toasting to avoid burning. Let brownies cool completely before cutting for cleaner slices. For gluten-free, substitute flour and graham crackers accordingly. Optional broil for 1-2 minutes to brown marshmallows evenly.

Nutrition

Keywords: s’mores brownies, graham cracker crust, marshmallow topping, easy brownies, chocolate dessert, campfire dessert