Raspberries and blackberries are the fruits most often employed for making jams, and require equal weight of sugar and fruit. .

Raspberry Jam

Pick over raspberries. Mash a few in the bottom of a preserving kettle, using a wooden potato masher, and so continue until the fruit is used. Heat slowly to boiling-point, and add gradually an equal quantity of heated sugar. Cook slowly forty-five minutes. Put in a stone jar or tumblers.

Blackberry Jam

Follow recipe for Raspberry Jam, using blackberries in place of raspberries.