Bouchon is Keller's other restaurant, the French bistro sidekick to his French Laundry's and his Per Se's haute cuisine. The French Laundry, in Yountville in Napa, is arguably the best restaurant in the US. There, Keller is an innovative and creative superstar. Bouchon means both a cork in a wine bottle, and a type of casual bistros specific to the Lyon area. Bouchon, the book, is a compendium of the restaurants' recipes. It was first published about nine months ago.