Back in the days of my childhood in Brooklyn, going out for Chinese food was one of the weekly treats I always looked forward to. Our menu selections rarely varied from week to week and ALWAYS included chicken chow mein. I would love to re-create that same chow mein at home. It certainly had lots of onions, and probably celery, water chestnuts and bean sprouts. I'm not sure what else was in it, but it was a fairly simple dish. I'm looking for an authentic Brooklyn recipe, which may actually bear no resemblance to anything remotely Cantonese.