Oxtail soup traces back to the islands' Chinese immigrant community — a version of kau yuk built around oxtail, raw peanuts simmered until soft, star anise, and a coin or two of dried tangerine peel that perfumes the whole pot. It's a special-occasion, low-and-slow dish that rewards patience with a broth that tastes like it's been building flavor for a full day, because it has.
Served with rice, a chili pepper water and hot mustard-shoyu dip on the side, and usually a big platter of family around the table — this isn't a weeknight-in-a-hurry dish, and it isn't trying to be.