When buying the pork spare ribs, have the butcher cut them through the bones into 1.5cm (⅔ in) pieces. If you try to cut them at home, it requires a very sturdy cleaver and a thick cutting board.

Have the butcher cut the pork spare ribs into pieces; it's very difficult to do it yourself. Rinse the pork ribs and drain them well. Put them in a bowl and add the soy sauce, rice wine ...