Potato Ham Soup

1 cup potatoes -- diced

1/4 cup onion -- diced

1/2 cup celery -- diced

1/4 teaspoon pepper

1/2 teaspoon salt

2 cups water

3 tablespoons butter, -- melted

1 1/2 tablespoons flour

2 cups milk

1 cup ham -- diced

Combine first six ingredients. Simmer until vegetables are tender. Combine flour and melted butter. Add butter, milk and diced ham to vegetables. Heat just to boiling. Let set a couple of hours to allow flavors to blend.