Bubbie & Rivka's Best-Ever Challah (So Far!)Practice makes progress in this multigenerational story about family traditions and the pursuit of the perfect challah. Bubbie & Rivka's Best Ever Challah (So Far!) introduces Bubbie and Rivka, who are not the best bakers yet. But they are starting a new tradition. Every Friday, they will bake a challah together! Week after week, Bubbie and Rivka pull a challah out of the oven thats not quite right. Once, its a little lumpy. Another time, its totally