Combine all ingredients. Chill dough overnight. It works best if you divide it up into lumps first, and wrap them flattened to about 1 inch thickness in waxed paper. This makes the rolling easier. Flour the counter, unwrap a lump of dough, flour the top, and roll it out thin. Cut with cookie cutters. Bake at 425 degrees for 7-8 minutes. Optional Frosting: Combine egg white, water and sifted powdered sugar until you reach the right consistency.