The key to making a good bulalo soup is to use the correct cut of beef. It has to be bone-in shank. How much meat is attached to the shank is a personal choice. But the bone has to be cut crosswise, and the marrow should be intact.Long and slow cookig is required. Stirring is not a good idea especially if both ends of the bone are open. You really don't want the precious marrow falling out prematurely and melting into the cooking liquid.
Set over high heat and bring to a boil, removing scum as it rises.
Add the whole onion, garlic (pierced in several places with a sharp pointed knife), bay leaf and peppercorns.
Stir in two tablespoons of fish sauce.
Lower the heat, cover and simmer for two hours (longer, for a more flavorful broth) or until the beef is fork-tender. It is important to taste the broth every half hour or so and adding more fish sauce, as needed.
Using a slotted spoon, carefully remove the beef shanks and transfer to a tureen or serving bowl.
Strain the broth, pour back into the pot and reheat to boiling point.
Add the potatoes, cabbage, another tablespoon of fish sauce, and simmer for another ten to 15 minutes.
Scoop the vegetables out and arrange around the bulalo.
Pour in piping hot broth and serve at once.
Notes
Updated from a recipe originally published in May 5, 2009