Yeah, you need to find a neglected Chinese province to pick. Silk Road has done Xinjiang. Maybe go for Gansu? From wiki: The cuisine of Gansu is based on the staple crops grown there: wheat, barley, millet, beans, and sweet potatoes. Within China, Gansu is known for its lamian (pulled noodles), and Muslim restaurants which feature authentic Gansu cuisine. Sounds spot on for a new trend.