Cordial of Imladris

Our earliest (albeit indirect) mention of the Cordial comes from accounts of warriors in the early days of Gondor, where we're told that they carried supplies of their own that were '...not indeed the miruvor or the lembas of the Eldar, but like them...' (Unfinished Tales of Númenor and Middle-earth, Part Three, I The Disaster of the Gladden Fields). This places the existence of the Cordial miruvor at least as far back as the beginning of the Third Age, and its loose association here with lembas - which was known to have existed in the First Age - implies that the Cordial dated back into the distant past.