What is the real recipe for doughnuts?

The real recipe is a catty of white flour four to five taels of water salt three money alkali three money alum three money salt alkali alum research for powder, salt and alum and alkali respectively with equal amounts of water and liquid to be used, and then the same as the same into the salt and alum water slowly blended side by side stirred into the foamy liquid, and then slowly added to the white flour kneaded into a blank cover and woke up for an hour after the kneaded into a ten centimeters wide blank smeared with oil and woke up again for a while, cut the two centimeters wide strips two two Stacked with chopsticks in the middle of the pressure, pinch the two ends of the stretch put 150 a 180 degrees in the oil temperature to fry up pangsong golden yellow fish out, to be crispy and noodles and then one or two water starch paste into the foam liquid and noodles, fried fritters extra crispy drop the ground can be shattered, and now say that alum is harmful to the brain do not have to use it, I do not know what to use as a substitute for the fritter in the taste anyway, can not eat thirty years