Well, in the good old times my father managed to try and eat the "casu marzu" (literally "spoiled cheese"), a famous Sardinian cheese that was purposely left to spoil until had maggots in it.

It was considered a delicacy, but in this modern times of food and health regulations it has been obviously outlawed for decades.

Apparently, some Sardinan farmers have a clandestine production going on, for private consumption. Wouldn't mind to try it someday.

https://en.wikipedia.org/wiki/Casu_marzu