Cut the cabbage into bite-sized pieces.
Soak the rice cake slices in cold water for 10 minutes.
Thinly slice the beef and marinate with sauce (soy sauce, minced garlic, black pepper).
Pour water into a pot and add the cabbage. Bring to a boil.
Once the cabbage is cooked, add the marinated beef and let it boil.
Add the rice cake slices and boil until they float to the surface.
Season with soup soy sauce and salt to taste.
Finally, add chopped green onion and let it simmer briefly.