Three times you have to add cold water to cook the dumplings, and after the three times you have added cold water and boiled them, they are ready to eat, as follows:
One, add cold water to the pot and boil it with the lid on.
Second, when the water boils, put the dumplings into the pot one by one.
Third, after the water boils for the first time, add 1/3 bowl of cold water, cover and cook again. The second and third time the water boils, repeat the step of adding cold water.
Four, a **** add three times cold water, and finally all the dumplings floating expansion is cooked.
Fifth, note that the frozen dumplings should be cooked for a while longer.