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Preserve

Fruit Preserves

Preserved fruit made by cooking fruit with sugar until syrup thickens, then jarred with melted paraffin.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 2 ingredients
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Why it works: Peach and pear match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 114 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓

Fruit Preserves

Ingredients

Directions

Prepare the fruit

  1. Weigh the fruit before cooking.

  2. Cook the fruit until almost done before adding sugar.

Make the syrup

  1. Add sugar and cook until the syrup is as thick as honey.

Jar and seal

  1. Carefully place the fruit into jars and pour the syrup over it.

  2. Cover with melted paraffin and seal with paper to exclude dust.

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. Peach + peartop 1% of all pairs
    Smell alikestrong
    Cooked together114 recipes

    Shared aroma: 2,4-decadienal (seaweed).

  2. Pear + sugartop 17% of all pairs
    Smell alikelow
    Cooked together2,079 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

  3. Peach + sugartop 17% of all pairs
    Smell alikelow
    Cooked together2,308 recipes

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

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

What each ingredient does

Solid fruit
Provides the bulk, flavor and texture of the preserve.
Sugar
Sweetens the preserve and thickens the syrup, helping to preserve the fruit.

The step that matters

Cook the syrup to honey thickness. Sugar must be concentrated enough to thicken and help preserve the fruit. Stopping too early leaves a runny syrup that may spoil, while overcooking makes it stiff and may cause sugar to darken or crystallize.

Swap the peach

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

  1. Vanillafits better
  2. Applefits better
  3. Plumfits about as well
  4. Peachthe original

Fit is the average pairing score against pear, 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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