Here's a cookbook destined to be talked-about this season, rich in techniques and recipes epitomizing the way we cook and eat now. Bar Tartine--co-founded by Tartine Bakery's Chad Robertson and Elisabeth Prueitt--is obsessed over by locals and visitors, critics and chefs. It is a restaurant that defies categorization, but not description: Everything is made in-house and layered into extraordinarily flavorful food. Helmed by Nick Balla and Cortney...