2. Hu Aishan sparerib soup is a Chinese medicinal diet, which belongs to Cantonese cuisine. Wash the ribs and blanch them with pepper for later use. Boil the ribs and ginger in a pressure cooker with water and simmer for 20 minutes. Carrots, yam, hob, corn. Add carrots and corn and simmer. Transfer all the ingredients in the pressure cooker to the casserole and add the yam. Bring the fire to a boil, then simmer for 30 minutes, and put salt in the pan.