1, add salt to flour, knead with water and mix well.
2, wake up after mixing 15 minutes, during which you can rub it several times.
3. Use a piece of gauze, wrap a proper amount of sweet potato starch and tie the bag tightly for later use.
4. After the dough is awake, apply a layer of starch on both sides, and then roll it out with a rolling pin to a suitable thickness.
5. After the dough is rolled out, spread it out completely, and use utensils to divide the dough into four squares.