Estonian Cod Salad with Horseradish Sauce

Description
This zesty fish salad makes a lovely luncheon entree. You can also try making it with Haddock or Halibut. Both the Slavs and the Balts have a weakness for poached fish dressed in a creamy horseradish sauce

Ingredients

 * 2 pounds cod fillets (cut into 2-inch pieces)
 * salt (according to taste)
 * 2 tablespoons fresh lemon juice
 * ¼ cup prepared horseradish
 * ¾ cup sour cream
 * ⅓ cup mayonnaise, preferably Hellmann's
 * pinch of sugar
 * ¼ cup very finely chopped onion
 * 2 medium-size Kirby cucumbers (peeled and cut into small dice)
 * 3 tablespoons finely chopped fresh dill
 * freshly ground black pepper, to taste
 * 1 head Boston lettuce, leaves separated, rinsed, and patted dry

Directions

 * 1) Place the cod fillets in a shallow enameled pan, add enough water to cover, and bring to a boil over high heat.
 * 2) Add ½ teaspoon salt, reduce the heat to low, and simmer the fish until it just begins to flake, 3 to 4 minutes.
 * 3) Drain the fish thoroughly and place it in a large bowl.
 * 4) Sprinkle lemon juice on it.
 * 5) In a small bowl, combine the horseradish, sour cream, mayonnaise, sugar, onion, cucumbers, and dill.
 * 6) Mix thoroughly and season with salt and pepper.
 * 7) Toss the fish gently but thoroughly with this mixture, cover, and refrigerate for 45 minutes.

Serving

 * 1) Arrange on a bottom layer of lettuce in a serving dish and serve fish salad over it.