One would think that the multiple-award-winning chef, author, and restaurateur Thomas Keller’s similarly multiple-award-winning French Laundry restaurant in Napa Valley had attained perfection. It is consistently voted one of the top 50 restaurants in the world, and reservations are taken two months in advance. Each day’s menu includes vegetables from Keller’s two-and-a-half acre garden across the street that are picked, prepped, and plated within 24 hours. And the extensive wine list—compiled by the head somm…