2. Wash the pork tenderloin and cut it into large pieces. Blanch with boiling water and rinse with cold water. Soak oyster sauce in warm water and wash it. Scrape the zucchini, wash it, and cut it into middle sections; Wash red beans and red dates separately, and remove the stones from the red dates.

3. After washing the pot, put in 3000ml (about 12 bowl) of water, and then put the pot on the stove. Boil the water in the pot first, and then pour the above raw materials into the pot to cook. After the water in the pot is boiled again, simmer 180 minutes.

4. Remove residue after cooking, and take it after adding proper amount of oil and salt.