Combination of oxtail+tomato+corn+yam. It is also a stew and a "fresh" drink, but the soup made in this way is completely different from the stew. Wash the oxtail, chop it, put it in a pot, add clean water that has not completely touched the oxtail, pour in 2 tablespoons of cooking wine, boil it with high fire, and then take it out of the pot and wash it for use. Put the cooked oxtail in, add twice as much water, add ginger slices, boil over high heat, and add seasoning. The amount of water is determined according to the water consumption of the pot. If the pot you use is not too short of water during cooking, add 2-3 times as much water as oxtail. But if your pot has a deep draught, remember to add more water. It takes much longer to stew oxtail than ordinary soup.