I do love egg creams. But being a Seattleite, it’s possible I’ve never had a really good, authentic egg cream. (The hot dog stand in the Pike Place Market where I first learned to love the egg cream might make them authentically, or not — I don’t know. But they are good.)
Jason Perlow has posted A New York Egg Cream Primer, and I am going to try his instructions ASAP. I notice that he says that real sugar in the chocolate syrup is key — I believe it. Time to go check out the Passover food display at QFC.