Melt butter in large skillet.

Stir in flour.

Slowly add water used to cook fish, and milk.

Stir constantly to keep smooth.

Chop whites and yolks of hard-boiled eggs separately.

Stir in whites and seasoning.

Pour mixture over fish.

Garnish top with coarsely chopped yolks.

Heap well-mashed potatoes round fish.

Garnish with chopped parsley and cayenne.

sauce used for Easy plain chicken, except that the stock water is different.