Prepare shabu-shabu beef slices and various vegetables (bok choy, napa cabbage, water parsley, mushrooms, etc.) by washing them thoroughly.
Pour 700ml of water into a pot and add kelp, onion, green onion, and garlic to make broth.
Once the broth is infused, remove the kelp and season with soy sauce and salt.
When the broth boils, briefly blanch the prepared vegetables and mushrooms.
Put beef slices in one by one, cook lightly, and enjoy.