Lembas

The famous enchanted Elven Waybread, made in secret by  many of the great Elven ladies and given away to the  deserving, never  sold.Each preparer  has  a  slightly different recipe.If  kept clean  and dry, lembas keeps  fresh indefinitely.Each slice  contains 30  small square doses; each dose heals  1-10 hits,  provides a full day's nutrition, and adds +10 to  the user's  Constitution bonus  for that day. It is also reputed to have a number of other beneficial effects.