You have to trust a chef who admits to a love of peanut butter, especially when she’s based in Napa Valley, otherwise known as culinary heaven. Christina Machamer has triumphed on “Hell’s Kitchen” and has worked not only with Gordon Ramsay, but with famed chefs Larry Forgione and Thomas Keller, too. Few can rival her success, but this recipe for pad thai is sure to put you on the path to gourmet cooking, even if you’re sheltering in place.