Knish (noun) A piece of dough stuffed with potato, meat, or cheese and baked or fried.

Synonyms: N/A

Source: https://www.thefreedictionary.com/knish 

Article: Mattison, D. Lindsay (2021), What Is a Knish? 

Quote from article: “the knish originally comes from Eastern Europe. Jewish immigrants brought it to the United States in the early 1900s, and the knish made its first appearance on New York’s Lower East Side.”

My thoughts/interpretation: A knish is sometimes called jewish soul food and os rarely seen anywhere outside of New York City.