1 lb Blackberries
2 pt White wine vinegar
2 lb Sugar
4 oz Honey

Place the blackberries in a glass or china bowl and pour the vinegar over.
Leave to stand for at least 24 hours, stirring and pressing the fruit
regularly, to extract the juices. Strain the liquid into a large saucepan
or small preserving pan and bring to the boil. Add the sugar, stirring
until it is all dissolved, then add the honey, stirring well. Bring back to
the boil and boil hard for 5 minutes. Allow to cool completely. Originally
this syrup was bottled and stored, one tablespoon being added to a glass of
hot water to form a bedtime drink. However, the syrup can easily be frozen
in ice-cube trays and then stored in bags in the freezer to be used when
required.

A pleasant nightcap that is also said to be good for reliving a cold.