Soak the seaweed in cold water for 10 minutes, then drain.
Cut the beef into bite-sized pieces.
Add sesame oil to a pot, then add the beef and seaweed. Stir-fry over low heat for 2 minutes.
Add doenjang (soybean paste) and water, then bring to a boil.
When the broth is infused, add minced garlic and simmer for another 5 minutes.
Taste and adjust the seasoning with salt if needed.
Serve the finished soup in a bowl.