Beat egg whites until foamy and gradually add sugar, salt, and vanilla, still beating. Beat until stiff. Fold in chocolate bits and walnuts. Place by tablespoonful on well greased cookie sheet. Turn off oven and put cookies in. Leave in oven overnight.
Recipe by Let's Be Yummy at https://letsbeyummy.com/2014/02/10/forget-me-cookies-gluten-free-dairy-free-recipe/