Matzo ball changeups: Flavorful variations on the Passover classic

If the mark of a well-run kitchen is consistency, then my mother must be doing something right. Her matzo ball soup, just like her mother's and her grandmother's, has been made the same way for decades: with a poached whole chicken breast, halved carrots, and golden bubbles of chicken fat rising to the surface amid bobbing matzo balls, made with the recipe on the back of the Manischewitz box.