1. First, soak the sea cucumber in water for 30 minutes to 1 hour. The purpose of this step is to remove the sand and impurities on the surface of the sea cucumber.

2. Next, cut the soaked sea cucumber into small pieces and set aside. You can use a kitchen knife to cut the sea cucumber into suitable sizes.

3. Then, take a pot and add appropriate amount of water, put in the chopped sea cucumber pieces. Bring to a boil on high heat and then turn to low heat and simmer for 30 minutes to 1 hour until the sea cucumber becomes soft and rotten. Finally, add appropriate amount of salt to season according to personal taste.