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Marshmallow Brownies

Rich, fudgy chocolate brownies layered with gooey marshmallows for a decadent treat. Soft, chewy, and perfectly chocolatey, these brownies are a fun twist on a classic favorite that’s perfect for dessert or sharing with friends and family.
Print Recipe

Equipment

  • 8x8-inch baking pan
  • Mixing bowls (medium and small)
  • Whisk and spatula
  • Measuring cups and spoons
  • Parchment paper (optional)

Ingredients

  • 1/2 cup 1 stick unsalted butter, melted
  • 1 cup granulated sugar
  • 2 large eggs
  • 1 tsp vanilla extract
  • 1/3 cup unsweetened cocoa powder
  • 1/2 cup all-purpose flour
  • 1/4 tsp salt
  • 1/4 tsp baking powder
  • 1 cup mini marshmallows plus extra for topping, optional
  • Optional: 1/2 cup chocolate chips or chopped nuts

Instructions

  • Preheat Oven: Preheat oven to 350°F (175°C). Grease or line an 8x8-inch baking pan with parchment paper.
  • Mix Wet Ingredients: In a medium bowl, whisk together melted butter, sugar, eggs, and vanilla until smooth.
  • Add Dry Ingredients: Sift in cocoa powder, flour, salt, and baking powder. Gently fold until combined, being careful not to overmix.
  • Fold in Marshmallows: Gently fold in 1 cup of mini marshmallows and chocolate chips or nuts if using.
  • Bake: Pour batter into prepared pan and spread evenly. Bake for 25–30 minutes, until a toothpick inserted near the center comes out mostly clean (marshmallows may slightly caramelize).
  • Optional Topping: Sprinkle extra marshmallows on top in the last 5 minutes of baking and broil for 1–2 minutes to toast them lightly. Watch carefully to avoid burning.
  • Cool and Serve: Allow brownies to cool in the pan for at least 10 minutes before cutting into squares. Serve warm or at room temperature.
Servings: 12 brownies