2, ready-to-eat sea cucumber cooking If it is frozen, you only need cold water to put it in the pot, then boil the water and cook it for 2 minutes. Ready-to-eat sea cucumber is originally an instant food, which can also be cooked in millet porridge or sea cucumber soup. No matter which way it is eaten, it is not suitable for cooking all the time, and the heating time in the pot is 2 minutes.