Shanghai snacks could be traced back to as early as the Southern Song Dynasty and became more exquisite in cooking when Shanghai grew into an important city in early Ming Dynasty.
Clean and boil the green soybeans, then peel them and make them into paste.
Mix the glutinous rice powder with water and add the seasonings to make dough.
Put the seasonings in the pork to make a filling. Mix the flour with water to make dough.
Mince the streaky pork and mix it well with refined salt, gourmet powder, Shaoxing wine, sugar, chives and ginger shreds and chicken broth.
Add some cold water gradually to the flour and mix into dough. Roll the dough into wonton sheets.
Scald and clean the pork skin and pig bones respectively. Put the old hen, pork skin and pig bones in cold water.
Heat the pan. Place the dumplings in it. Add some oil. Add some water after the bottoms of the dumplings are golden.
Scald the pork skin in boiling water. Cook it in a wok till well done (water: pork skin 1:3).