Vegetable glycerine (food grade)
Strip the berries from the stem, using a fork. To make a glycerite put the berries into a clean jar and pour on slightly warmed glycerine until they are completely covered. Seal and keep in a warm place for 2-4 weeks, shaking daily. Strain through muslin and store in a dark bottle in a cool place for up to 2 years. Take a spoonful four times a day for colds and flu.