Two Bridges, Manhattan
A window on Henry Street where the dough gets rolled in full view and a stack of fifteen costs less than a subway ride. No tables, no menu boards with photos — just a line that moves fast and sauce you mix yourself.
This is a walk-up window, not a restaurant — there's no host, no seats, and on a cold day, no shelter. What you get instead is dumplings that were dough about twenty minutes ago, handed to you in a paper bag with a small tub of soy-vinegar-chili sauce to mix yourself. Regulars know to combine the two sauces on the counter rather than pick one.
It's popular enough that a short line forms most afternoons, but it moves quickly since there's nowhere to sit and linger. Best eaten immediately, while they're still hot — the pork filling is juicy enough that the first bite needs a napkin.