FILLETS OF SOLE WITH MUSHROOMS

Bake the fillets for ten minutes and cool. Cook together one tablespoonful each of butter and flour, add half a cupful of stock and half a cupful of cream. Cook until thick, stirring constantly. Add a pound of fresh mushrooms chopped fine and simmer until the mushrooms are cooked. Cool the mushroom mixture and spread upon the fillets. Set the baking-pan into another of hot water, reheat in the oven, and serve with Hollandaise Sauce.