1. Frozen glutinous rice balls should not be cooked until they are completely thawed. After being completely thawed, glutinous rice balls are easy to stick together, and the skin is easy to break when cooked;

2. When the water in the pot boils, put in the prepared frozen dumplings, and then slowly stir with a spoon to prevent the dumplings from sticking to each other or to the bottom of the pot;

3. After the dumplings float, cook them slowly with low fire and gently stir them to prevent sticking;

4. When cooking glutinous rice balls, you can boil water and add cold water once, without too much cold water. It can be done for about two or three times, so that the boiled dumplings will not break the skin.