Although we feature smoked fish in this chowder, the recipe works equally well with fresh fillets of such white fish as cod, haddock, halibut, or snapper.
In a small bowl dissolve cornstarch in half-and-half or milk and stir into simmering soup with Worcestershire sauce. Bring soup to a boil, stirring, and add fish. (If using smoked trout, no further cooking is necessary; if using finnan haddie or fresh fish, simmer, covered, 5 minutes, or until it just flakes.) Stir in parsley or dill. Soup may be made 2 days ahead (cool uncovered before chilling covered.) Reheat gently.