Cook in cold water.
If you wait for the water to boil before cooking the quick-frozen dumplings you buy, the skin will easily break and the filling will be exposed, because the skin of quick-frozen dumplings is relatively thin. Therefore, you need to use cold water to cook, otherwise the dumpling skin will be cooked, but the filling inside will still be raw, and the skin will become rotten after cooking. When the water is boiling, it is better to add some cold water, so that the meat filling of the quick-frozen dumplings will cook faster and the skin will not break.
When making fresh dumplings at home, you must wait until the water boils before putting them in the pot. Of course, whether it is quick-frozen dumplings or fresh dumplings made by yourself, if you want the pot to be non-stick, you must first add some salt to the water when cooking, stir evenly, then put the dumplings into the pot and stir them with the back of a spatula. Cover the pot and cook to prevent the dumplings from sticking to the pot and without breaking the skin.
Extended information:
Precautions for cooking dumplings
1. Do not cover the pot as soon as the dumplings are out of the pot
If the dumplings are out of the pot Just cover the pot. If the pressure in the pot is too high, it is easy to boil the dumpling wrappers. Once the wrappers are broken, the dumpling fillings will be all over the pot. Therefore, after placing the dumplings, wait for the water to boil again. Wait a few minutes to allow the dumpling wrappers to heat evenly. Once the dumpling wrappers are cooked, cover the pot.
2. It is not advisable not to add some water in the middle.
Some people boil the dumplings as soon as they boil to the bottom. This is inappropriate, as this will inevitably break the dumplings. As the saying goes: "Three rolls for dumplings, two rolls for noodles", there is some truth to this. In order to cook the dumplings quickly without breaking them, during the process of cooking the dumplings, an appropriate amount of cold water should be added in time after the pot is boiled to prevent the boiling water from rolling over the pot or boiling the pot too quickly and causing the dumplings to break.
Reference: People's Daily Online - Should dumplings be cooked in hot water or cold water? You must know these two points when cooking dumplings