Pho Stock

Directions

1. 1
   Place the beef bones and oxtails in a large stockpot, cover with water.
2. 2
   Bring the liquid up to a boil and cook for 10 minutes.
3. 3
   Remove from the heat and drain.
4. 4
   Rinse the pot and bones.
5. 5
   Return the bones to the pot and cover with 6 quarts of water.
6. 6
   Bring the liquid up to a boil and skimming often to remove the foam.
7. 7
   When the foam stops rising to the surface, add 3 quarts of water and return to a boil.