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Gooseberry Jam
4 pounds gooseberries 3 pounds sugar 1 pint red currant juice Melt the sugar in the currant juice, let boil five minutes after boiling actually begins; add the berries and let boil about forty minutes, skimming as needed. Set aside until next day.
Skim the berries into jars, boil the syrup until thick (ten to fifteen minutes), and pour over them.
A two-day preserve in the old style: the fruit is cooked in syrup, rested overnight, then lifted out so the syrup can be reduced separately. The point is whole berries suspended in a set jelly rather than a homogeneous mash.
- The hinge: cook the syrup, not the berriesThe overnight rest lets the berries absorb sugar and firm up; the final ten to fifteen minutes of boiling is done on the syrup alone so the fruit does not disintegrate. Skip the rest and you are likelier to end up with a crushed, homogeneous jam.
- Forty minutes is long by modern practiceContemporary jam-making runs 15 to 25 minutes because gooseberries and currants are both high in pectin and acid and set readily. Judge by the syrup instead of the clock: 220F on a thermometer, or a spoonful that wrinkles on a chilled plate.
- Currant juice is doing real workIt is there for pectin, acid and colour, not just flavour. A pint is two cups; if you cannot get fresh red currants, unsweetened bottled red currant juice works, but avoid sweetened cordials as they will throw the sugar ratio off.
- Choose green, underripe berriesFirm green gooseberries hold their shape through 40 minutes of simmering and carry the most pectin. Fully ripe dessert gooseberries collapse. Top and tail them before starting; the recipe assumes you know to.
- "Melt the sugar"This means dissolve it completely in the juice over low heat before the mixture reaches a boil. Any undissolved crystals on the pan wall will seed the syrup and make it grainy.
- Pan and skimmingUse a wide, heavy preserving pan with plenty of headroom; a sugar-heavy boil climbs fast. The scum that needs skimming is largely air and protein, harmless but cloudy in the finished jar.
- SealingThe book assumes jars sealed hot and stored in a cold larder. Follow current practice instead: hot jam into hot sterilised jars, and process in a boiling-water bath for the time your local extension guidance gives for jam. Refrigerate anything you do not process.
Gooseberries were a British obsession long before they were an American preserve: nineteenth-century gooseberry clubs in the north of England competed over the sheer size of individual berries, and the fruit's sharpness made it a mainstay of pies, fools and jams in cool, damp gardens where peaches would not ripen. Pairing it with red currant juice is an old preserver's trick from the same tradition — the two fruits ripen together, and the currants supply colour and a reliable set to a berry whose pectin varies with ripeness. American cookbooks of this era printed gooseberry recipes freely, but the fruit was about to become hard to obtain: Ribes species host white pine blister rust, and from the 1910s onward federal and state programs restricted or destroyed gooseberry and currant plantings across much of the country. Bans lingered in some states for decades, which is a large part of why a jam that was once commonplace now reads as unfamiliar.