i enlisted laura silverman to help me understand what people are missing. >> you say knish they think of a perioaperiod in time and their n assesancestors and it's got allf that history wrapped into it. plus it's really good. >> what is a knisl mean t sh mean to you. >> i'm a native new yorker. i felt like it encapsulated our history. something linked to a jewish past. >> a knish is a filling usually potatoes wrap in dough. it was a fire that caused the national shortage. >> when the fire occurred on september 2 24th the machinery was destroyed. when the firefighters came in they did what they had to do but the water dabblin damage that te machine sustained rendered the machine unoperable. and since that time we have not been able to marc-andr manufacte square knishes. this is stacey and her family has the corner on the market for generations. we always new our customers loved our knishes. but we could never have imagined outcry of when they will be back. the shortage means customers have to find alternatives. bidding for them on ebay or the less popular round knisles. >> i grew up as