Soak the seaweed in cold water for about 10 minutes, then drain.
Cut the beef into bite-sized pieces.
Heat sesame oil in a pot and stir-fry the beef and soaked seaweed for 2-3 minutes.
Add 500ml of water and bring to a boil.
Once it starts boiling, skim off the foam, then season with soy sauce and minced garlic.
Simmer over medium-low heat for 10-15 minutes until the seaweed becomes tender.
Add salt to taste if needed and finish.