The ribs are marinated in salt, soy sauce, sugar, and onions, about half a day.
After the frying pan is hot, put a little oil, fry the ribs until it is discolored (about 3 minutes), and turn the other side to fry golden or dark.
Add the right amount of water, turn to the small fire cover cover for about fifteen minutes until the ribs are ripe, turn to the fire to collect the dried juice.
Peel the potatoes, cut into small pieces, steam in a steamer and crush with a spoon. Add the appropriate amount of cheese and mix well. Add salt. It can be mixed well in advance and put hot in the pan before eating.