Take them when fully ripe, let them remain on the stems. Make a rich
syrup, allowing the same weight of sugar as barberries. When clarified,
set it where it will get lukewarm, then put in the barberries. Boil them
till the syrup appears to have entered them. Barberries preserved with
molasses, and a little orange peel and sugar, are very good for common
use. Allow for each pound of barberries a quarter of a pound of sugar,
half a pint of molasses, and the rind of half an orange. Make them into
a syrup with a little water--boil it a quarter of an hour before putting
in the barberries. Preserved barberries, mixed with cold water, make a
very refreshing drink in fevers.