Grandmother's Chowder Recipe

In a Dutch oven, cook beef and onion over medium heat until meat is no longer pink; drain. Add the potatoes, water, salt and pepper; bring to a boil. Reduce heat; cover and simmer for 15-20 minutes or until potatoes are tender. Stir in the milk, corn and parsley; cook for 5 minutes or until heated through. Add a small amount of hot soup to sour cream. Gradually return all to pan, stirring constantly. Heat through but do not boil.