Truffle is the common name of the Tuber genus mushrooms that grow and mature within the ground: because of this, a dog with a “trained nose” is needed to find them.
The mushrooms of Tuber genus are 63: 25 species grew in Italy but only 9 are edible.
Among all of them the “Tartufo Bianco of Alba” and the “Tartufo Nero of Norcia” are famous for their taste and quality. The flavor of black truffles is far less pungent and more refined than that of white truffles. Its strong flavor is often described as syrupy sweet. Black truffles also are used for producing truffle salt and truffle honey.

Thanks to Mistofrigo