Zhi He Lao Ya Fen Si Tang

For over 20 years, this neighbourhood shop run by a husband-and-wife team has won the hearts of many with its Nanjing-style duck offal glass noodle soup. Toppings include blood curd, intestine and stuffed tofu puffs. The deluxe version also comes with duck heart and gizzard. The clear duck broth is simmered for hours to develop deep umami. It is even better when the broth is soaked up with duck fat Shaobing flatbread or paired with puffed rice crackers to add some crunch.