Broth-based soup is a soup where the base is made of broth.  The broth is usually made from some form of stock, whether it be meat or vegetable based.  u003cbr/u003eu003cbr/u003eThe broth can be made with either a stock cube for convenience or from stock that has been made from scratch. u003cbr/u003eu003cbr/u003eThe source of the broth doesn’t hugely affect the quality or flavor of the stock because items such as stock cubes are much more advanced than they used to be.u003cbr/u003eu003cbr/u003eThe best broth-based soups are made with a stock that corresponds to the main flavors of the soup.  For example, a vegetable stock with vegetable soup.