Leishayuan is one typical snack in Qiaojiashan restaurant, with a history of more than 70 years. During the late years of Qing Dynasty, a woman with last name Lei in Sanpailou of Shanghai, created the method of rolling the cooked tangtuan with some flour, for the purpose of carrying it easily. In memory of this woman, people later named the tangtuan Leishayuan. In Qiaojiashan restaurant, they firstly grind the red bean bought from Chongming County, and then air-dry it. Besides the filling of sweetened red bean paste, Qiaojiashan also provides tangyuan with other filling, like fresh meat, sesame. Then cook the tangyuan in boiling water, and follow to remove it to drain. After that, roll the tangyuan with some bean paste meal. The tangyuan made in this way not only looks attractive, but also tastes sweet, and soft, and is welcomed by people from various areas.

(Introduction from InmandarinChina.com;  Photo from xfzc.com)