périgourdine, à la
French for "as prepared in the style of Périgord," referring to dishes garnished or flavored with truffles as well as those served with. The term is derived from France's Périgord region, which is famous for its black truffles.
From The Food Lover's Companion, Fourth edition by Sharon Tyler Herbst and Ron Herbst. Copyright © 2007, 2001, 1995, 1990 by Barron's Educational Series, Inc.