2. If the water boils, add some cold water, without stirring hard. Just push jiaozi gently and stir hard and it will break. When they are cooked, you can eat them until they float on the water.
The frozen glutinous rice balls won't melt quickly when they are taken out of the refrigerator. If there is ice on the dumplings, it is suggested to melt them properly first, otherwise the boiled dumplings will not taste good.
4. It is best to use stainless steel pot. First, turn on the appropriate water and heat it on the fire. When the water is about to boil, slowly slide the dumplings along the edge of the pot, and then stir them slowly with a spoon. Don't push them, because they may break. Cover them when they are pushed to the bottom and wait for them to boil.
When the water in the pot boils, jiaozi will float slowly. When jiaozi is about to float, gently push it with a spoon. When the jiaozi rises to half of its original value, you can turn off the fire, and the quick-frozen jiaozi will be cooked.