שטו העם ולקטו וטחנו ברחים... ועשו אתו עגות והיה טעמו כטעם לשד השמן
Chazal (Yoma 75a) teach that the manna had within it a multiplicity of tastes, allowing the individual to experience any taste he wanted. It had no name until the first Shabbos it descended upon the camp. They called it Manna among themselves, a name which implies hachanah, preparation, for all foods; any taste could be experienced by eating it. When on the sixth day/Erev Shabbos, however, a double portion fell, they called it Manna/man, because the mem and nun, two letters which comprise the word manna, are spelled out in double letters: mem = mem, mem: nun, nun (Kli Yakar)….