The edible method of dried Undaria pinnatifida is as follows:

1. Undaria pinnatifida was washed with salt several times and soaked in clear water for several hours.

2. Boil the water in the pot, add the soaked Undaria pinnatifida and cook for five minutes.

3. Take out the Undaria pinnatifida, let it cool, squeeze out the water, and add Chili oil. Stir well.

4. Add vinegar, salt and sugar and mix well.