Chinese Water Spinach Curry has all the classic Thai flavors; salty, sweet, sour and hot. This dish, now made with pork, was originally made with a large, oily freshwater fish, known to the locals as "Tay Po'. At some point, the fish was replaced with pork belly. Then, as people are got more health conscious, the pork became leaner. But all the flavors are still amazing.
'Gang Tay Po' is a type of red curry called gang kua. Two of the characteristics of gang kua are the added sweet and sour. Sugar or palm sugar is the sweet. Tamarind or kaffir lime juice is the sour.