S'more Squares Please | Recipe Reader

Ingredients

• 9 whole graham crackers or 1 cup store-bought graham cracker crumbs
• 1 1/4 cups all-purpose flour
• 1 1/4 teaspoons baking powder
• 1 teaspoon fine sea salt
• 1 cup unsalted butter, room temperature
• 1 cup dark brown sugar, packed
• 1/2 cup granulated sugar
• 2 large eggs, room temperature
• 1 tablespoon vanilla extract
• 8 ounces bittersweet chocolate, coarsely chopped into chunks, divided
• 1 1/2 cups mini marshmallows