Cut the beef into bite-sized pieces.
Finely chop green onion, garlic, and onion.
Heat sesame oil in a pot, then stir-fry the beef, green onion, and garlic.
Once the beef is cooked, pour in 500ml of water.
When it starts to boil, remove any impurities.
Add onion and tofu.
Dissolve doenjang (soybean paste) into the soup and simmer for 10 minutes.
Add chili peppers to taste and boil for a little longer.