Soak the cut oxtail in water for half a day, changing the water occasionally to remove the blood.

Korean Beef Tail Soup
A recipe for a delicious and simple homemade Korean beef tail soup.
What You'll Need
Instructions
Place all the oxtail in a pot, fill with enough hot water to cover, add 1 bay leaf and 5 whole black peppercorns, and boil.
Once the water starts to boil, parboil over medium heat for 30 minutes.
⏱️ 30m 0sClean the parboiled oxtail and the pot thoroughly to remove impurities.
Put the cleaned oxtail back into the pot, add 4 liters of water and 1 paper cup of soju, and boil.
Once it starts to boil vigorously, stir occasionally and remove the yellow fat.
Cover and simmer over medium heat for 2 hours.
⏱️ 120m 0sTurn off the heat, keep the lid closed, and let it steam for about 40 minutes.
⏱️ 40m 0sRemove the cooked oxtail, cool the broth, and place it in the refrigerator to solidify and remove the fat.
Put the fat-removed broth and oxtail back into the pot, boil once more, serve in a bowl, and finish by adding chopped green onion, coarse salt, and MSG.