Very Fine Imperatrice Plum Marmalade

• Imperatrice plums (without the stalks) 6 lbs.: boiled 35 to 40 minutes.
• Sugar 2 lbs.(ad

Weigh six pounds of the fruit when it is quite ripe, but before the frost has touched it; give each plum a cut as it is thrown into the preserving-pan, and when all are done boil them from thirty-five to forty minutes, taking out the stones as they rise to the surface, when they are quite detache