[Quiet Man Cometh]

Deviled eggs are like cold egg mush, really. Boil eggs, take out yoke, mix up with stuff like you would make an egg salad or something (yolks, mayo, mustard, pickles or what have you) and squish back into the egg white for a little cup.

I think it's considered horrifying to people who don't know what it is, sorta like a Scotch Egg. I saw one of those Buzzfeed-y videos that had Scots (or Europeans in general) trying deviled eggs and American's trying Scotch Eggs. Never tried one myself but there is a British Shoppe here that sells them.