Blackberry Cordial
To one quart of blackberry juice, add one pound of white sugar, one tablespoonful of cloves, one of allspice, one of cinnamon, and one of nutmeg. Boil all together fifteen minutes; add a wineglass of whiskey, brandy or rum. Bottle while hot, cork tight, and seal. This is almost a specific in diarrhea. One dose, which is a wineglassful for an adult–half that quantity for a child–will often cure diarrhea. It can be taken three or four times a day if the case is severe.
Source: Our Knowledge Box, ed. G. Blackie
Blackberry Cordial
Mash and strain the blackberries; put the juice on to boil in a brass or bell-metal kettle; skim it well, and to each gallon of juice put three pounds of sugar and a quart of spirits; bruise some cloves and put in. This is valuable as a medicine for children in summer.
Source: Domestic Cookery, Useful Receipts, and Hints to Young Housekeepers, Elizabeth E. Lea