Monsoon Romance Soup!

Ingredients:

1 1/2 Kg pork ribs, cut in 1-inch chunks.
(I know, this seems like a LOT, but they shrink when cooked, and there is a lot of bone and cartilage included. You need these, though, as they give the soup its flavor.)
1 medium onion, quartered and sliced
2 cloves garlic, minced
1 tbsp. vegetable oil
4 cups water
2 lime sized balls of Tamarind (soak in hot water and make concentrate)
1/4 cup of small dried shrimp
1 tbsp. fish sauce
1 tsp. salt
1 cup chopped tomatoes with juice
2 potatoes, peeled and cubed
1 carrot, peeled and cut in chunks
1 cup radish, sliced (optional)
3 cups of baby bok choy, halved

Method:
In a soup pot, saute the onions and garlic in the oil until golden. Add the pork and cook until evenly browned. Add the water, the tamarind concentrate, dried shrimp, fish sauce, salt, and tomatoes. Simmer, covered, for a hour or 2,stirring every so often, until the meat is very tender and falling off the bone, and the flavors have developed nicely. (May seem like a long time, but trust me... let it simmer on very slow fire)

Add the potatoes, carrots, and radish, and simmer for 10 more minutes, or until the potatoes are tender. Turn off the heat and add the bok choy and stir it in until it is nicely wilted - you won't need to have the stove heat on, the soup itself is hot enough to cook the greens.