Truffles in Umbria - Audio Europe: Italy by Rick Steves Audio Europe published on 2013-10-01T21:12:59Z They're expensive, grow underground, are found by specially-trained dogs, and can be harvested only if you have a license. Siena-based tour guide Roberto Bechi explains how to locate, cook, and enjoy this delicacy. Related travel information at www.ricksteves.com.