How to make oil residue?

First, white sugar (must be sugar) is boiled in warm water, and the ratio of white sugar to fat is 0.2: 1: 1. (Every two sugars boil into a catty of water and fat), mainly in terms of calories. Be sure to put the warm sugar water and fat in the pot together (it is best to use an iron pot). Heat the pot first, then put it in the pot together. Boil the water first, then boil it until there is a layer of oil foam, and then turn to medium heat; At this time, people should not leave the pot, pay close attention to the changes of water quantity and oil output. When oil and water are separated quickly, a little oil will explode in the pot. At this time, the oil residue will be transferred to a small fire until only oil remains. At this time, the oil residue will be quickly removed, sprinkled with a little baking powder and turned into a big fire, and then fried in a pot until golden brown. Hotel chef (typing by hand, only secret skills)