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S’mores Brownies

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These S’mores Brownies combine fudgy chocolate brownies with crunchy graham crackers and gooey toasted marshmallows. A campfire classic turned into the ultimate dessert!

Ingredients

Scale
For the Brownie Base
  • 1 cup (2 sticks) unsalted butter, melted
  • 1 ¼ cups granulated sugar
  • ¾ cup light brown sugar, packed
  • 3 large eggs
  • 2 teaspoons vanilla extract
  • 1 cup all-purpose flour
  • ¾ cup unsweetened cocoa powder
  • ½ teaspoon salt
  • ½ teaspoon baking powder
  • ½ cup chocolate chips (optional, for extra richness)
For the S’mores Layers

  • 810 graham crackers, broken into large pieces
  • 1 ½ cups mini marshmallows
  • 4 oz milk chocolate, chopped (or ½ cup chocolate chips)

Instructions

Make the Brownies
  1. Preheat your oven to 350°F (175°C). Line a 9×13-inch baking dish with parchment paper or grease it lightly.
  2. In a large bowl, whisk together the melted butter, granulated sugar, and brown sugar until smooth.
  3. Add the eggs and vanilla extract, whisking until fully combined.
  4. In a separate bowl, whisk together the flour, cocoa powder, salt, and baking powder.
  5. Gradually mix the dry ingredients into the wet ingredients until just combined. Fold in the chocolate chips, if using.
Assemble the S’mores Brownies
  1. Arrange the graham cracker pieces in a single layer on the bottom of the baking dish.
  2. Pour the brownie batter over the graham crackers and spread it evenly.
  3. Bake for 25–30 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.
Add the S’mores Topping
  1. Remove the brownies from the oven and immediately sprinkle the mini marshmallows and chopped chocolate over the top.
  2. Turn the oven to broil and place the brownies back in for 1–2 minutes, or until the marshmallows are golden and slightly toasted. Watch closely to prevent burning!
  3. Let the brownies cool for about 15 minutes before slicing and serving.
Serving & Storage

  • Enjoy warm for a gooey texture or let them cool completely for cleaner slices.
  • Store leftovers in an airtight container at room temperature for up to 3 days or refrigerate for up to 1 week.

Notes


  • For extra crunch, sprinkle crushed graham crackers on top before serving.
  • If you don’t have a broiler, use a kitchen torch to toast the marshmallows.
  • Swap milk chocolate for dark chocolate if you prefer a richer flavor.