This hearty soup has been a favorite of the Dutch for many genearations. Traditionally the Dutch make this soup with uncured ham and add smoked sausage, and is often considered a complete meal. I have even seen recipes where a half pound slab of bacon is added to the soup and removed just before serving. The recipe that follows is the variation that you are more likely to find offered in the United States where it is served before the main meal. If you choose to include the smoked sausage, add it the last 15 minutes before serving.
Source: Private collection