Shanghai’s heavenly soup-filled dumplings, or Xiao Long Bao, with a thicker wall than its Nanjing cousin, are one of the city’s favorite snacks. The city is known for its lighter, sweeter tones and a predilection for enhancing foods’ original flavors with condiments. The boiled shrimps below are served with a sauce that combines vinegar, soy sauce, garlic and a speck of chili oil. Kaofu, unique to Shanghai, is a sweet cold dish made from gluten.