Soak dried seaweed in cold water for 10 minutes.
Cut the beef into bite-sized pieces and season it.
Squeeze excess water out of the soaked seaweed.
Heat sesame oil in a pot, then stir-fry the beef and seaweed together.
Once the ingredients are cooked, add water and bring to a boil.
Skim off any foam that rises to the top.
Season with soy sauce for soup and salt to taste.
Simmer on medium-low heat for another 10 minutes.