Shepherd's Soup

Melt butter in a saucepan, add salt pork and cook until it is melted and starts to brown. Add turnip, leeks, onion and carrot and cook very slowly; about 1/2 hour. Add stock (or water) and potatoes, bring to a boil and cook slowly about 35 minutes or until potatoes are soft. Correct the seasoning and serve in a tureen with toasted bread floating in top.