Truffle is a type of mushroom in mycorrhizal fungi (Mycorrhizal Fungi) and has a distinctive flavor. In which the western menu (Especially French) Truffles are the ultimate in condiment foods. It was nicknamed the Diamond of the Kitchen and was very popular with the French in 1780 after the French chef. Stop using spices from the east. Due to its overly pungent taste and smell, however, truffles were consumed only among the elite. Because it is very expensive.