In recent years, there have been innovations on the traditional cifantuan, originating from Hong Kong and Taiwan, then reverse-introduced into Shanghai and its vicinity. Today, cifantuan is commonly available in two varieties. Whereas the "savory" variety includes ingredients such as zha cai (pickled vegetable), rousong (pork floss) and small pieces of youtiao being wrapped in the rice ball, the "sweet" variety adds sugar and sometimes sesame to the filling.