Sauce.
A cupful of the liquor in which your fish is cooking, strained and skimmed. Put into a saucepan; heat, and stir in a great spoonful of butter rolled in a teaspoonful of flour. When this boils, add the pounded yolks of two boiled eggs, and a tablespoonful of minced cucumber pickle. Boil once, and serve. Garnish the fish with rings of whites of eggs, and pickles, sliced.