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Dessert

Preserved Quinces

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

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 ↓

Preserved Quinces

Ingredients

Directions

Prepare the quinces

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

  2. Combine the cores and peelings with enough water to cover in a preserving kettle 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 liquid a little at a time until tender.

  2. Lift the quinces out with a drainer and place them on a dish.

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

  4. Add the sugar to the liquid and boil for 10 minutes.

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

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

Jar

  1. Cut the lemons into thin slices and place a slice or two in each jar when filling.

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
Fruit that softens and turns color during long simmering, forming the preserve itself.
White sugar
Sweetens and preserves the fruit by drawing out water and inhibiting spoilage.
Lemons
Adds acidity and brightness that balances the sweetness of the syrup.

The step that matters

Simmering the quinces gently. Quinces need a long, low simmer to turn tender and change color. Stirring or boiling hard can break the fruit apart and scorch the sugar on the bottom, so the spoon is slipped under rather than stirring.

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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