Soup dumplings, also known by their Chinese name of xiao long bao (or XLB for short), were first popularized in New York City 25 years ago by Joe’s Shanghai. But these soup-filled purses with a tiny pork meatball inside (sometimes also with crab meat, if only a wad on top), have a far longer history. They originated in the Shanghai suburb of Nanxiang around 1875, and quickly took their place among the Shanghai region’s other dumpling styles. Nowadays, entire restaurant chains specialize in them, like local chain Nan Xiang Xiao Long Bao and the behemoth Din Tai Fung, with over 170 locations in 13 countries. NY’s first branch of the latter opened in July; to start, it’s reservations only.
The secret: a gelatin-laced filling that turns liquid during steaming.
The best ones usually arrive in a bamboo steamer, and eating them requires some practice: Gingerly lift the dumpling onto your spoon by its topknot with the tongs provided or with chopsticks, nip off the knot with your teeth, suck out the broth, pour in the black vinegar-and-ginger sauce if you like, then eat the remainder. Just let them cool first, because the broth will be scalding when they arrive at the table.
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