Make soup! Boil the water first, then pour the pork bones once (the water is poured out), then fill them with appropriate amount of water, add the pork bones, and when the pork bones are almost half cooked, add the sweet corn, carrots and horseshoes to cook for about 2 hours, and add salt when taking out the pot (it will be better to put salt and iodine at this time). A delicious soup is ready, simple and delicious.