Tip 2: Make the dough bigger, not as thin as jiaozi, but thicker. Don't fry the wrapped jiaozi immediately, wait 18 minutes before frying.
Tip 3: prepare a bowl of water, then put a little flour, drop two drops of vinegar and stir it into flour water. This is the secret of jiaozi's crispness.
Tip 4: Add oil to the pot. When it's a little warmer, you can put jiaozi in the pot. Don't wait for the oil to smoke before releasing jiaozi. Then stir-fry it a little, pour the noodles in, cover the pot, and turn on medium heat until the water in the pot evaporates. Then add a little oil, stir-fry the bottom of jiaozi and take it out of the pot.