What is considered as food of the gods?

In Greek Mythology, Ambrosia was considered the "food" of the Gods, and it was allegedly believed that it would bestow the drinker with immortality. Today it is believed that Ambrosia was an alcoholic beverage akin to wine, mead, or nectar, however it is not known precisely what Ambrosia was as it was mentioned many times in Greek stories where it solved an array of dilemmas. See the related link below.