Many families in China usually prepare enough jiaozi to last several days during the Spring Festival time. To make jiaozi, first of all, you should chop the meat into tiny pieces and mash them, then add salt, sesame oil, soy sauce, ginger, scallions, Chinese cabbage and MSG if you like. Mix thoroughly the ingredients and meat filling, add two spoonful of water if necessary. In a big bowl, add water to flour gradually. (caution: not too much at a time!) Mix and knead by hand to soft dough, then cover it with towel and put it aside for about an hour. Scatter some dry flour on the board, knead and roll it into a sausage-like dough about 5 centimeters in diameter, then chop it into small pieces. Press each piece with your hand and get a pancake. Finally, you should hold the pancake with your palm and put the filling in the center and wrap it into half-moon shaped and seal the edges. The next step is to eat. Put the dumplings into boiling water, when it is well cooked, it is ready to be served. However, before eating, you need to prepare some small dishes to contain the mixture of soy sauce, vinegar, and sesame oil or pepper oil ( to suit your own taste!)