Hearty Fish Soup with Leeks, Cider, and Mushrooms

A matelote normande is made in almost the same way as a red wine fish matelote (see matelote á la bourguignonne) except that cider and cider vinegar are used instead of wine. It’s hard to go wrong with this soup since the flavors of leeks, mushrooms, and cider finished with heavy cream make a delicious base for just about anything—the fish becomes almost superfluous.