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Dessert

Prune Jelly

A gelatin dessert made from prunes, sugar, citrus, and optional vanilla.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Lemon and orange match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Prune Jelly

Ingredients

Directions

Prepare the jelly

  1. Wash the prunes and boil them slowly in enough water to cover until soft.

  2. Remove the stones from the prunes and sweeten to taste.

  3. Add essence of vanilla, or the juice and rind of a lemon, and the juice of two oranges.

  4. Soak the gelatine in water until soft, then add it to the prune mixture.

  5. Stir everything well together and pour into a mold.

Set

  1. Let it stand in the refrigerator until very cold.

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. Lemon + orangetop 1% of all pairs
    Smell alikestrong
    Cooked together10,634 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  2. Vanilla + orangetop 6% of all pairs
    Smell alikemoderate
    Cooked together2,371 recipes

    Shared aroma: beta-damascenone (apple, rose).

  3. Sugar + vanillatop 8% of all pairs
    Smell alikelow
    Cooked together35,032 recipes

    Shared aroma: beta-damascenone (apple, rose).

  4. Vanilla + lemontop 15% of all pairs
    Smell alikemoderate
    Cooked together5,961 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  5. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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 fruit flavour and body of the jelly.
Gelatine
Sets the liquid into a firm, sliceable jelly as it cools.
Sugar
Sweetens the tart fruit and balances the citrus acidity.
Oranges
Add bright acidity and fresh citrus aroma to the prune flavour.

The step that matters

Soaking the gelatine until soft. Gelatine must be fully hydrated before it is added, otherwise it will not dissolve evenly into the hot prune mixture and may leave lumps or weak setting spots.

Swap the vanilla

The recipe marks vanilla as optional. How well each one fits the dish's main ingredients (sugar, lemon, orange):

  1. Limefits better
  2. Vanillathe original
  3. Blueberryfits less well
  4. Figfits less well

Fit is the average pairing score against sugar, lemon, orange. 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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