Practice: (1) Wash mustard and lean pork; Sliced lean pork; Shelling salted eggs; Wash ginger, peel and slice.
(2) Add clear water to the earthenware pot, boil it with strong fire until the water boils, add mustard and lean pork, roll until the lean pork is cooked, add salted eggs and a little salt to taste, and roll it slightly until the salted egg yolk is cooked. Serve.