Blue Corn Matzo Balls Add a Tex-Mex Twist to the Soup at Chicago's Rye Deli & Drink

When I think of the matzo ball soup I ate growing up, the only bright colors came from the orange logo of the boxed matzo meal my mom used to make it, some baby carrots, and maybe a tiny sprig of parsley (if we were lucky) floating in the pale yellow broth. Still, the soup was the most comforting thing about celebrating the first night of Hanukkah, and...