Greengages, to preserve.
Gather the plums before they are too ripe, and take as much pump water as will cover them. Put to the water a quarter of a pound of double-refined sugar, boil it, and let it stand to be cold. Prick the greengages with a large needle in four places to the stone; wrap each of them lightly in a vine-leaf, and set them over a slow fire to green. Do so for three days running; on the last day, put in a spoonful of old verjuice or lemon-juice, and a small lump of alum. Next day draw them, and, after taking off the vine-leaves, put them in a thick syrup, first boiled and cleared. Finish them by degrees, by heating them a little every day till they look clear.
Another way.
Stone and split the fruit without taking off the skin. Weigh an equal quantity of sugar and fruit, and strew part of the[278] sugar over the greengages, having first laid them on dishes, with the hollow part uppermost. Take the kernels from the stones, peel and blanch them. The next day, pour off the syrup from the fruit, and boil it very gently with the other sugar eight minutes. Skim it, and add the fruit and kernels. Simmer the whole till quite clear, taking off any scum that rises. Put the fruit, one by one, into small pots, and pour the syrup and kernels to it.