The Borscht Belt is an indelible part of American Jewry’s legacy, but it may never have come about without these industrious immigrants – and the antisemitism that motivated themThe Nosher via JTA — Many home cooks this past year, in an Instagram-inspired spirit, upped their challah-baking game with new braiding patterns, interesting flavors and vibrant colors. Yet it was a more standard ingredient that unwittingly connected many to their roots. If you used Fleischmann’s yeast for your challah, you leavened your dough with the essence of American Jewry. The Fleischmann family’s story echoes the experience of many other immigrant...