Sinfully Delicious: The Story of Dongpo Pork
[...]According to history, Su Dongpo was once the Mayor of Hangzhou City. He led people to build dams to prevent the beautiful West Lake from being polluted by algae. The local people showed their appreciation by sending a pig to his home. He asked his servants to follow his recipe to cook the pork and sent the cooked pork to the people working on the project. Since then, Dongpo Pork has become a famous dish of Hangzhou.Su Dongpo wrote a poem called “Eating Pork”:Huangzhou has good pork,The price is as cheap as dirtThe rich don’t want to eat itThe poor don't know how to cook itCook slowlyWith a little waterWhen the time comes, the pork will become deliciousA bowl of pork of every morning,will satisfy a man enough to forget all cares.This poem did not tell us detailed cooking process and ingredients, but “cook slowly with a little water” already told us how we should control heat, cooking time, and moisture.
http://cls.hs.yzu.edu.tw/su_shih/su_people/su_ebook/yellow_remember1.htm