Ingredients
Ox Tail Bones with meat—–1pkg
Lots of Water
Pepper and Salt for taste
Chopped Green Onion for garmish
Directions
1. Place ox tail bones in a large bowl of cold water for about 1 hour. (This is to take out excessive blood.)
2. Put cleaned ox tails in a large pot with about 1.5 gallon of water.
3. On a medium heat, boil for about 6 to 10 hours. (the more, the better) During the boiling time, check the pot from time to time and take out oil floating on surface with a big serving spoon. Pour more water to maintain at least 1 gallon in the pot. When it is done, it should be close to cream color.
4. Serve soup with couple of bones with sides of chopped green onion, salt and pepper.
Source: http://www.koreaneats.com