truffles as in the mushroom? I had it in a soup, it was tasty.
Extremely pungent, gotta use them sparingly in cooking otherwise their flavor completely overwhelms. It is definitely a flavor that you can get tired of fast if there is too much of it.
60 Minutes had a segment on the truffles.
Including the black market (via theft of truffles), and sellers substituting inferior chinese truffles as the real thing (French and Italian).
http://www.cbsnews.com/video/watch/?id=7394364n