The classic sandwich favourite is reinvented as an outstanding lunch or dinner-size soup. For authenticity, serve with dill pickle spears.
Make quick work of cabbage by using the slicing attachment on food processor.
Beef broth can be replaced with chicken broth, if preferred.
The croutons can be stored in an airtight container for up to 2 days. If necessary, re-crisp on a baking sheet in the oven for a few minutes.