A tangy creamy fish soup made with white fish fillet and flavoured with lemongrass and galangal. The ingredients for this recipe are quite simple; just fish, ginger, green onions, tofu, and some hot water. The result is a creamy, milky colored soup that has quite a strong umami fish flavor. The key to producing the coveted creamy color depends on two factors. First, the pan needs to be very hot when sautéing the fish. Second, when adding water to the fish, the water needs to be very hot as well. These two factors will ensure the fat in the fish becomes completely emulsified in water, resulting the creamy milky color.