but key lime pie was 'invented' post US civil war, when borden, (the first company to make canned milk) got a contract to help supply food goods to south (and part of the 'rebuilding of the south' the southeners agreed, sweetened condenced milk was a abomination, and in their efforts to reduce the sweetness, they added lime juice and 'created' key lime pie.

(improvements in technology resulted in evaporated milk a few years later)

my other obsession