Gravensteins, Pippens, or Delicious make the best dried apples, but any kind will do. Wash apples well. If they have been waxed, use castile soap. Remove core, but leave unpeeled apples whole. Slice in rings 1/8 inch to 1/4 inch thick. Hang slices to dry on a string that goes through the center of each of the slices, being sure they don’t touch each other. Allow to hang for several days.