This rich duck liver mousse is luxuriously soaked in port wine, letting the fruity flavors of the port marinate with the creamy and robust flavors of the pate. Port wine brings a sweet and complex flavor to an already intense and gamy developed product. Silky duck mousse with port wine is a notable export from the traditional recipe found in Southwest France. The creamy mousse is accented by Basque port wine, whose dark but sweet notes bring out the peppery tones of the mousse. Nothing is more enjoyable than this spreadable snack already fully cooked and blanketed in aspic. An elegant appetizer is easy to manage when topped with caramelized onions on a crisp cracker.