What is the food called truffles

Question

always see on top chef, h***s kitchen and so on truffles just what the heck are they?

Answer 1

very expensive mushrooms

Answer 2

Truffles are mushrooms.  Don't confuse them with truffles, the chocolate candies.

Answer 3

Subtle, earthy mushrooms. The choice of this pricey fungus as a descriptor strongly implies a favorable intent, as is not necessarily the case with its cousin "mushroom."

OR

Chocolate confections that usually consist of a center and a coating of ganache

Answer 4

They're kind of like a mushroom, but not exactly.  They're very tasty, but also very rare and therefore expensive.  The wikipedia page does a good job of explaining them: http://en.wikipedia.org/wiki/Tuber_(genu...