Bonne Maman Preserves Damson Plum Preserves. Chunks of mature plums and plum jelly are lightly sweetened for a remarkable breakfast accompaniment or recipe enhancer. Ingredients: Damson Plum, Sugar, Cane Sugar, Concentrated Lemon Juice, Fruit Pectin. As with all natural food products an occasional pit may be present. Product of France. Kosher. Bonne Maman Damson Plum Preserves are sold in a case pack of six(6) glass jars with net 13 oz each.