Chinese yam, yu er golden fungus, silken tofu. The unique double-boiling culinary technique has been popular in China for thousands of years. The slow and gentle process is said to achieve maximum flavour, perfect for coaxing forth the true essence of the delicate fish. This aromatic and nourishing soup, known as naibai yutang, is gently simmered until a rich savouriness perfumes the broth, and is topped with scorched crispy rice