1. Boil Water
Bring a large pot of water to a boil. A ten-quart stock pot will do (this one has a nifty spigot.)
Then add the marrow bones and the short ribs to the pot and return to a boil.
2. Remove Meat
Continue boiling until no red blood from the meat is visible (about ten minutes), then remove the meat and bones with tongs and scrub under cold water to remove all scum.
3. Scrape Marrow
Using a butter knife, remove the marrow from the bones and reserve for the end. Dump the water in the pot out and rinse the pot.
4. Add Spices
Return the cleaned meat and bones to the pot then add the onion, garlic, peppercorns and fish sauce. Cover with water then bring to a rolling boil, skimming off any scum that accumulates. Reduce the heat to medium low and cook until tender, between four or five hours.
5. Strain the Stock
Transfer the meat and bones to a bowl, then strain the stock through a fine mesh sieve, discard the solids then return the meat and bones to the strained stock.
6. Poach Egg
In separate pot, boil two quarts of water with white vinegar and 1 tbsp of salt. Create a whirlpool in water, drop egg into water and poach.
7. Add Remaining Ingredients
Add the corn and chayote and simmer for another twenty minutes or until the chayote is tender. Salt to taste. At the last minute, add the bok choy and stir the reserved bone marrow into the broth.
Add the poached egg and the suka, and then serve with rice.
To cut through the fat in the soup, Filipinos traditionally use suka, a vinegar infused with garlic. We asked Miguel Trinidad, the chef owner of New York Filipino themed restaurants Maharlika and Jeepney. After traveling in the Philippines, Trinidad learned to flavor suka with a variety of spices, and recommends aging the vinegar for the cycle of one full moon, at the very least, to bring out maximum flavor.
Suka Infusion Empty wine bottle and cork 1 Sugar cane vinegar 1 quart Garlic 10 cloves Sili or bird chillies 6 Black peppercorn 1 tbs Scallion 1 Ginger 1 thumb-sized piece, julienned This will take: 20 minutes
8. Obtain bottle
Drink a bottle of wine and clean it out.
9. Mix ingredients
Place all ingredients in the bottle and cork.
10. Let It Blend
Leave for the cycle of one full moon and eat with everything.