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Decadent S'mores Brownies

Decadent S'mores Brownies

Fudgy brownies meet toasted marshmallows, melty chocolate, and a buttery graham base for the ultimate campfire-style treat. Easy to make, impossible to resist.
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Prep Time: 20 minutes
Cook Time: 35 minutes
Total Time: 55 minutes
Servings: 16

Ingredients
 

Main Ingredients

  • 0.33 cup unsalted butter melted, for crust
  • 1.5 cup graham cracker crumbs fine crumbs
  • 0.5 cup unsalted butter melted, slightly cooled, for batter
  • 1 cup granulated sugar
  • 0.5 cup light brown sugar packed
  • 3 large eggs room temperature
  • 2 tsp vanilla extract
  • 0.75 cup unsweetened cocoa powder natural or Dutch-process
  • 1 cup all-purpose flour spooned and leveled
  • 0.5 tsp fine salt
  • 0.25 tsp baking powder
  • 1 cup semi-sweet chocolate chips
  • 4 cup mini marshmallows
  • 4 oz milk chocolate chopped or broken into squares
  • 0.5 cup graham crackers roughly broken, for topping
  • 0.25 tsp flaky sea salt optional, for finishing

Instructions

Preparation Steps

  • Heat oven to 350°F. Line a 9×13-inch pan with parchment and lightly grease.
  • Combine graham cracker crumbs with 0.33 cup melted butter. Mix until evenly moistened.
  • Press the mixture firmly into the pan. Bake 8 minutes, then set aside.
  • Whisk 0.5 cup melted butter with granulated and brown sugars until glossy and combined.
  • Beat in the eggs one at a time, then stir in vanilla until smooth.
  • Whisk flour, cocoa, baking powder, and salt in a bowl. Fold into the wet mixture just to combine.
  • Stir in chocolate chips. Spread batter evenly over the warm crust.
  • Bake 22–26 minutes, until the center is just set and a few moist crumbs cling to a tester.
  • Top with mini marshmallows, chopped milk chocolate, and broken grahams. Return to oven 3 minutes to toast and melt.
  • Cool completely in the pan. Finish with flaky salt if using, then lift out and cut into squares.

Notes

Try swirling 1/3 cup marshmallow creme into the batter before baking for extra gooey pockets. For a peanut butter twist, add 1/2 cup peanut butter chips with the chocolate chips. Store leftovers airtight at room temperature for 2 days or refrigerate up to 5 days; warm slices for 10–15 seconds to re-soften the marshmallows.
This recipe is an original creation inspired by classic Decadent S'mores Brownies flavors. All ingredient ratios and instructions are independently developed.