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Prune Jelly
Stew a cup of prunes in sufficient water to cover them well. When tender pour through a potato press or a colander, add an ounce of gelatine previously soaked for half an hour in a little water, return to the fire, sweeten to taste, let cook three minutes and pour in molds to cool.
A simple stewed-fruit jelly from the invalid-cookery chapter, where the goal was nourishment that could be swallowed without effort. Two things need attention: the gelatine quantity and the pits.
- Pit the prunes firstPrunes of this period were commonly sold with the stones in, and pressing the cooked fruit through a colander or potato press would hold back both stones and skins. With modern pitted prunes you can simply press or blend the softened fruit and skins straight into the pan.
- An ounce of gelatine is too much todayCommon household powdered gelatine (Knox and similar) runs around 225 Bloom and comes in ¼-oz envelopes; an ounce is four of them, far more than this quantity of thin purée needs. Older sheet gelatine was probably weaker and less consistent in strength. Two teaspoons (about ¼ oz) will set roughly two cups of fruit purée to a spoonable jelly.
- Bloom, then dissolve off the boilSoaking the gelatine in cold water for half an hour is correct and still the right first step. Once it goes into the hot purée it only needs to dissolve clear — a long hard boil weakens the set, so the "cook three minutes" is best read as three minutes at a bare simmer.
- Water quantity"Sufficient water to cover them well" is about 1½ to 2 cups for a cup of dried prunes. Stew 20-30 minutes until the fruit collapses; if the purée comes out very thin, reduce it before adding the gelatine rather than adding more gelatine.
- SweeteningPrunes are already sugary, and modern dried plums are generally sold moister and softer than the harder, drier fruit of the period. Taste before adding anything; a tablespoon of sugar and a squeeze of lemon usually does more for it than a heavy hand with sweetener.
- Setting and yieldMakes about two cups, enough for four small custard cups or ramekins. Chill at least four hours, or overnight for a clean turn-out. Rinse the molds with cold water before filling so the jelly releases.
"Invalid cookery" was a fixed department in American and British household manuals from the 1870s through the 1920s, on the assumption that nursing the sick happened at home and that the cook was also the nurse. The dishes in these chapters share a logic: soft, bland, easily swallowed, and thought to be gently laxative or strengthening — beef tea, gruels, barley water, junkets, and fruit jellies like this one. Prunes earned their place because they were cheap, kept indefinitely in a dry store, and had a long-standing reputation as a mild aperient, which mattered to patients confined to bed for weeks. Commercial gelatine was one of the period's genuine conveniences; before it, a cook wanting jelly boiled calves' feet or isinglass for hours. A direction to use "an ounce of gelatine" may well reflect a market in which strength was not yet standardised, with a cook learning by result what her usual brand would do.