Step1:First, blanch the ribs. For the first time, froth and scrape off. Pour out the water. Wash the ribs, then add water and cook until they are cooked. When it's cooked, take out the oil pan and stir fry. Pour in a little raw / old soy sauce and color it. Stir in the sweet and vinegar juice (put vinegar when it's sweet. Add sugar when it's sour). Out of the pot.
Cooking tips:There are skills in making delicious dishes.