When it comes to Sauvignon Blanc, people think of New Zealand, the Loire Valley and even California. But few remember to think of Bordeaux, whose white wines are not seen in big numbers. Yet they are composed in part of Sauvignon Blanc and often have a tinge of that  bracing green, herbalness that fans of the grape love. The other part of the wine, often the majority, is made up of Semillon, a grape with a bigger, rounder body and texture than SB and less green, more  honeyed notes. The wines are not classic Sauvignon Blanc, but rather  a little bigger, fatter with a slightly sweet, waxy quality from the  oak.  I love them, and they work wonderfully with food. We had thisBlanc de Lynch-Bages a couple of nights ago with homemade gazpacho. Delicious.