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Dessert

Quince Preserves

A preserve made by boiling quinces with sugar, water, and lemon.

From an old cookbook · modernised transcription
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Why it works: Quince and lemon match in chemistry and in kitchens. They rank in the top 11% of all ingredient pairs, and cooks put them together in 336 recipes. Both carry trans-2-hexenal, which smells green, leafy. The science ↓

Quince Preserves

Ingredients

Directions

Prepare

  1. Pare, core, and quarter the quinces, then weigh them.

  2. In a preserving kettle, combine the parings and cores with enough water to cover and boil for 30 minutes.

  3. Strain the liquid through a fine sieve and return it to the kettle.

Cook the quinces

  1. Boil the quinces in the juice a little at a time until tender, then lift them out with a drainer.

  2. If the liquid is scarce, add more water.

  3. Once all quinces are done, add the sugar to the kettle and boil for 10 minutes.

  4. Add the quinces back to the kettle and boil for about 1 hour and 15 minutes on low heat until they change color.

  5. Occasionally slide a silver spoon under the quinces to prevent burning, but do not stir.

Fill jars

  1. When filling jars, place a slice or two of lemon in each jar.

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. Quince + lemontop 11% of all pairs
    Smell alikestrong
    Cooked together336 recipes

    Shared aroma: trans-2-hexenal (green, leafy).

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

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

  3. Quince + sugartop 21% of all pairs
    Smell alikemoderate
    Cooked together1,444 recipes

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

Sugar and lemon 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

Quinces
Provide the fruit that becomes tender and sets into the preserve.
White sugar
Sweetens the preserve and helps it thicken and keep as it cooks.
Fresh lemons
Add acidity and aroma to brighten the sweet preserve.

The step that matters

Long low simmer with a spoon, not a stir. Quinces are dense and sugar-rich, so the mixture can scorch on the bottom during the long simmer. Keeping heat low and sliding a spoon under the fruit prevents sticking and burning without breaking the pieces apart as stirring would.

Swap the quince

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

  1. Orangefits better
  2. Limefits better
  3. Vanillafits better
  4. Quincethe original

Fit is the average pairing score against sugar, lemon. 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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