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Dessert

Prune Jelly

A fruit preserve made from prunes, sugar, lemon juice, and gelatin.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Gelatin and sugar are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 2,778 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓

Prune Jelly

Ingredients

Directions

Prepare the prunes

  1. Cook and seed the prunes, then grind them using a meat chopper.

  2. Add the sugar and lemon juice to the ground prunes.

Set the jelly

  1. Soften the gelatin with a little cold water, then dissolve it in the boiling water.

  2. Pour the dissolved gelatin into the prune mixture, mix well, and place in a cool area to mold.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Gelatin + sugartop 7% of all pairs
    Smell alikemoderate
    Cooked together2,778 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  2. Lemon + sugartop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

    Shared aroma: 2-nonenal (fatty, green).

  3. Lemon + gelatintop 27% of all pairs
    Smell alikelow
    Cooked together1,215 recipes

    Shared aroma: beta-pinene (pine, resin).

Lemon and sugar barely smell alike, yet cooks put them together in 53,532 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Prunes
Provide the main body, flavour and sweetness of the jelly.
Gelatin
Sets the liquid mixture into a firm, sliceable jelly as it cools.
Granulated sugar
Adds sweetness and balances the tartness of the lemon juice.
Lemon juice
Adds acidity that brightens the flavour of the prunes.

The step that matters

Dissolving the gelatin fully. Gelatin must be softened in cold water and then fully dissolved in hot water before mixing. Undissolved granules leave lumps and weak spots, so the jelly may not set evenly.

Swap the lemon

How well each one fits the dish's main ingredients (gelatin, sugar):

  1. Vanillafits better
  2. Raisinfits better
  3. Figfits better
  4. Lemonthe original

Fit is the average pairing score against gelatin, sugar. Candidates are from the same food group and used in at least 100 recipes.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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