The popular yet reluctant hosts of NYC Food Crawl are presenting an autumn Knish Crawl this evening. They write: Originally brought to the Lower East Side by Russian immigrants, the knish is now a New York deli favorite. Potato, spinach, and buckwheat are among the varieties available for your tasting pleasure. And they’re vegetarian. We’ll be visiting some of the folks who make the city’s best knish. Come taste and rate your favorite knishes. Go at your own pace, and pay as you go.