Old Major Chicken Liver Mousse w/ Grand Marnier is a decadent spread that will take your party to the next level. Yes, pate, will turn your party up to eleven. We use Organ meat from pasture raised chicken, cream, onions, spices and a touch of Grand Marnier to add a little bright citrus to the finish. Old Major Chicken Liver Mousse w/ Grand Marnier comes in 6oz glass jars. Serve with some pickled apple and fennel on crispy toast or crackers.