Casu Marzu
It is made from sheep’s milk and it goes beyond the fermentation stage to the decomposition stage when it is consumed. It gets to this decomposition stage thanks to the purposeful introduction of insect larvae, namely the cheese fly.
The larvae eat the cheese, break down the fats of the dairy product, and this increases the overall fermentation of the cheese.
The cheese is eaten when the maggots from the introduced insect eggs are actively crawling.
The flavor of the cheese is extremely sharp and can linger in your mouth for several hours. Don’t worry though – it is generally considered unsafe to eat the cheese if the maggots have died.