This is one of Joe Bonanno's most popular firehouse dishes. Choose a chili powder that suits your taste for heat. Leave the pot uncovered during simmering to allow excess water to evaporate and the chili to thicken.
This soup is a meal in itself, filled with winter vegetables and a secret ingredient that adds texture and flavor to the soup: a rind from a piece of Parmigiano-Reggiano cheese (just remember to remove it before serving). Serve this hearty soup accompanied by crusty bread, like ciabatta.