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 the quinces
Pare, core, and quarter the quinces.
Weigh the quinces and measure out an equal quantity of sugar.
Place the parings and cores in a preserving kettle.
Cover with water.
Boil for 30 minutes.
Strain the mixture through a sieve.
Pour the juice back into the kettle.
Cook the quinces
Boil the quinces in the juice a few at a time until tender.
Lift the quinces out.
Place them on a dish.
If there is not enough liquid, add more water.
Stir in the sugar.
Boil for 10 minutes.
Add the quinces back into the kettle.
Boil until they change color, about 1 hour and 15 minutes on low heat.
Jar and serve
Place the fruit in jars.
Add a slice of lemon to each.
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.
-
Quince + lemontop 11% of all pairsSmell alikestrongCooked together336 recipes
Shared aroma: trans-2-hexenal (green, leafy).
-
Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Quince + sugartop 21% of all pairsSmell alikemoderateCooked 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 and pectin-rich flesh that sets and flavors the preserve.
- Sugar
- Sweetens the preserve and helps it thicken and keep as it cooks down.
The step that matters
Boil the quinces in the juice until tender, then until they change color. Quince is firm and tough when raw, so it must simmer gently until fully tender before the sugar is added. Boiling too hard or too briefly can leave pieces hard or break them apart, and the color change shows the fruit has cooked through and taken on its rosy tone.
Swap the quince
How well each one fits the dish's main ingredients (sugar, lemon):
- Orangefits better
- Limefits better
- Vanillafits better
- 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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