Boiling the Broth and Preparing the Meat
Boil 3 quarts or 12 cups water in a large pot.
Add beef, dried shiitake mushrooms, and onion.
Reduce to medium high heat and cook for 1 hour.
Mix seasoning sauce in a bowl, cover with plastic wrap, and set aside.
Checking the Beef and Preparing the Broth
Check beef by pulling a sample chunk with a fork.
If tough, cook 10 minutes longer.
Maintain 7.5–8 cups broth by adding water if needed.
Remove beef, onion, mushrooms with a slotted strainer and cool.
Discard onion, shred beef, and drain mushrooms.
Adding the Vegetables and Final Cooking
Add mung bean sprouts, green onions, gosari to boiling stock.
Stir in seasoning sauce, cook for 20 minutes until tender but not mushy.
Add noodles, eggs for extra texture.
Garnish with scallions, season with salt.
Serve with rice and kimchi.
Serving and Storing Yukgaejang
Serve hot in bowls with rice, kimchi.
Garnish with scallions, add salt if needed.
Store in an airtight container in the fridge (4 days) or freeze (1 week, in portions).
Reheat and enjoy as the flavors deepen over time.