When I was in Montreal at Hof Kelsten, a stellar Jewish bakery-deli, I tasted the best rugelach ever. The cream-cheese dough was shaped into small rectangular pockets, overflowing with strawberry jam and nuts. Although the chef would not share the recipe, he did tell me the ingredients, and I realized his pastry is very similar to my own, a simple American cream-cheese butter dough so good that one reviewer in Montreal mistook Hof Kelsten’s version for a French mille-feuille pastry!