Flourless Chocolate S'more Cookies Ingredients 3 cups confectioners' sugar 2/3 cup unsweetened cocoa powder (Hershey's Special Dark) 1/4 teaspoon salt 2 to 4 large egg whites, at room temperature 1 tablespoon vanilla extract 1 1/2 cups bittersweet chocolate chips 1/4 cup graham crackers, broken into pieces plus extra for topping cookies 1/4 cup mini