Stop any Yankee on the street and ask the name of his or her favorite restaurant, and you'll be directed to a Connecticut clam shack . . . or a Maine lobster pound . . . or a Massachusetts chowder house. In these rustic eateries, you find the freshest seafood prepared according to classic, decades-old, family recipes. Mountains of whole-belly fried clams. Steaming bowls of rich, creamy chowder. Sweet lobster boiled in seawater. Fresh, succulent cod...