Shrimp can be difficult to serve in any kind of soup or stew. It takes only a few minutes of overcooking to turn the shrimp tough. To get around this, this chowder is prepared and then, just before serving, the shrimp are sauteed in very hot butter. The shrimp are added to the chowder as it is served. This all sounds like more work than it is, especially since the shrimp cook in just 3 or 4 minutes. Do-ahead tip: The soup is best the first day, but can be prepared a day in advance if necessary. Freeze for longer storage. The shrimp can be peeled and deveined hours in advance. Refrigerate until ready to cook. As published in The Washington Post, 01-26-2000.