By Xinhua writers Yao Youming, He Zhanjun and Xue Yanwen

XI'AN, March 1  -- In just one minute, Wu Ping stirs "mo" bread cubes and sliced mutton into the soup, tosses the pan with a flourish and pours the contents into a bowl to serve up the mouthwatering "Yang Rou Pao Mo," or mutton soup with mo bread, a signature dish of Shaanxi Province, northwest China.