S'more Brownies

INGREDIENTS

• 1 cup all-purpose flour
• 1 1/2 cups crushed graham cracker crumbs
• 4 large cold eggs
• Pinch fine salt
• 6 tablespoons unsalted butter, melted
• 2 tablespoons sugar
• 1 cup packed light brown sugar
• 4 cups large marshmallows
• 3/4 cup white sugar
• 1 1/2 teaspoons pure vanilla extract
• 1/2 teaspoon fine salt
• 8 tablespoons (1 stick) unsalted butter
• 4 ounces unsweetened chocolate, chopped