Chantilly Apple Sauce with Horseradish a la Sanford

Core a pound of sour apples, lay them in a saucepan with a little water; when done drain out and press through a very fine sieve. Add to the pulp one ounce of powdered sugar and two ounces of grated horseradish; stir well and beat in lightly the value of one pint of well-drained whipped cream. Serve this sauce separately with young ducks or goslings.