This is one of the most popular sauces in America, particularly for poultry. Put 1 lb. of well-washed cranberries in an enamel saucepan in 1 pint of boiling water, and simmer for 20 minutes, crushing the berries with a spoon. Remove the saucepan from the fire and stir in ½ lb. of sugar. Replace on the fire and simmer for another 15 minutes. Pour the sauce into a basin, without straining, and let it stand in a cool place for at least 12 hours before using.