Sauerbraten (Sweet Sour Beef)

3 1/2 pounds beef round steak 2 cups wine vinegar heated 2 cups water 1 1/2 teaspoons salt 2 tablespoons parsley leaves 1 teaspoon black pepper 2 tablespoons[...]

4 lbs sirloin tip roast or 4 lbs rump roast 1 1/2 cups vinegar 1 cup Coca-Cola 3/4 cup water 3 medium onions (sliced) 2 medium celery ribs (sliced) 2 medium[...]