Martha is one of several celebrity chefs who will be taking part in a new cooking app developed by The Food Network. For $48 a year, subscribers to Discovery's Food Network Kitchen app will have access to live and interactive cooking demonstrations by some of America's most renowned cookbook authors and cooking-show stars, including Ina Garten, Bobby Flay, Giada De Laurentiis and Guy Fieri. The app will feature live cooking courses, on-demand cooking classes and videos that will teach you about cooking tools and techniques. Some of Martha's first videos will be about Thanksgiving. Click the link above to learn more and subscribe. (There is currently a three-month free trial for the service. The app is available to US residents only).