Roast Duck with Orange Sauce

Duck, seasoned and roasted, in an orange and port wine sauce.

Scrape a tablespoonful each of fat bacon and raw onion and fry them together for five minutes; add the juice of an orange and a wineglassful of port wine, the drippings from the duck and seasoning of salt and pepper. Keep this hot without boiling, and serve with the duck after it is roasted.