There’s nothing better than a hearty soup to chase away the chill of a cool autumn day. This soup is the perfect fall comfort food. The savory flavor from smoked sausage and the earthy sweetness from onions and cabbage are balanced perfectly with a splash of vinegar and a bit of sour cream, all brought together by soft and tender potatoes--the only way this gets better is serving it with a nice hunk of buttered, crusty bread.