At New York’s oldest knishery, nosh with a side of Jewish history

NEW YORK – They can be square, round, or rectangular. They can be sweet or savory. Some have dough so thin you can read the newspaper through it; others weigh enough they could be used for bicep curls. Here at Yonah Schimmel’s Knish Bakery, the oldest knishery in New York City, the round golden pastries are…