2. Material: kelp 500g, aged vinegar, sugar, onion, millet, soy sauce, sesame oil, garlic and salt.

3. Generally, we can cook kelp 10 minutes or so, and generally it will not exceed 15 minutes. If cooked for a long time, the nutrients of kelp will be lost.

4. When cold kelp is served, we usually buy fresh kelp in the supermarket and take it back to clean it for later use.

5. Pour water into the pot and put it into the sea. After boiling, turn to medium heat and cook for about 7 minutes until the kelp is cooked.

6. After the kelp is cooked, remove the kelp, cool it with cold water, remove it after cooling, and control the moisture to make the kelp taste better.

7. We wash and chop the millet, garlic and onion.

8. Put the dried kelp in a bowl, then add the chopped millet, garlic and chopped green onion.

9. Pour in a proper amount of soy sauce, aged vinegar, sugar, sesame oil and salt, then stir well, and finally seal it with plastic wrap and put it in the refrigerator for more than 2 hours.