Modern cookery for private families by Eliza Acton

5. Fruit which is to be preserved in syrup must first be blanched or

boiled gently, until it is sufficiently softened to absorb the sugar; and a thin syrup must be poured on it at first, or it will shrivel instead of remaining plump, and becoming clear. Thus, if its weight of sugar is to be allowed, and boiled to a syrup with a pint of water to the pound, only half the weight must be taken at first, and this must not be boiled with the water more than fifteen or twenty minutes at the commencement of the process; a part of the remaining sugar must be added every time the syrup is reboiled, unless it should be otherwise directed in the receipt.