Building a Better Chicken Soup

Some tricks to improve this classic soup.

It's cold season, and everyone's coming down with something.  Chicken soup is a nourishing potion, one that seems almost automatic even though I've never really questioned why. Most of the time this tradition involves nothing more than opening a can of Campbell's chicken noodle soup: somehow those minuscule pellets of chicken and mushy noodles are okay once your temperature is above 100.

Bu...