Knish

The knish came to New York with Ashkenazi Jewish immigrants from Eastern Europe around the turn of the 20th century; the word is Yiddish, from the Ukrainian 'knysh' and Polish 'knysz' for a filled dough, names linked to the Polish town of Knyszyn. The documented New York landmark is Yonah Schimmel, a Galician (some accounts say Romanian) immigrant who sold knishes from a pushcart before opening a shop, with the present Houston Street bakery dating to 1910 — it is regarded as the oldest knishery in the United States and is still family-run. The square fried 'Coney Island' knish has its own lineage: Gabila's, founded by Elia and Bella Gabay in 1921, popularized that griddled form, which became the version most New Yorkers picture.

A round baked knish breaks open to a soft, thin, lightly flaky shell giving way to a dense, smooth potato interior — buttery, well-peppered, often laced with sweet sauteed onion. The Coney Island square version is a different mouthful: a thin dough fried until the outside crackles and blisters, with a creamy potato center that stays soft against the crisp shell. Both are starchy and savory rather than rich; the heat carries the onion and black pepper, and a stripe of sharp brown mustard cuts the density. It is comfort food — warm, plain, and filling.

Two processes define the knish: a tender dough and a starchy filling. The dough is a simple flour-egg-oil pastry, rolled thin and kept supple by oil coating the flour proteins so the gluten relaxes rather than toughens, then rolled around the filling so it bakes into a thin, slightly flaky jacket. The potato is boiled until the starch granules swell and burst, then mashed and bound with sauteed onion, fat, salt, and pepper into a cohesive, scoopable mass. In the baked version, oven heat sets the shell while steam from the moist filling keeps the inside soft; in the fried Coney Island version, hot oil dehydrates and browns the surface fast for a crisp crust while the interior stays creamy.