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 Preserve
Ingredients
Directions
Prepare the fruit
Pare, core, and quarter the quinces.
Weigh the quinces and measure an equal quantity of white sugar.
Put the peels and cores in a preserving kettle. Cover with water. Boil for 30 minutes.
Strain through a fine sieve.
Return the juice to the kettle.
Cook the quinces
Boil the quinces in the juice a little at a time until tender.
Lift them out with a drainer as they are done.
If the liquid seems scarce, add more water.
Add the sugar and boil for 10 minutes.
Add the quinces.
Let them boil until they change color, about 1 hour and 15 minutes on low heat. Occasionally slip a silver spoon under them to prevent burning without stirring.
Pack and finish
Slice the lemons thinly.
Place a slice or two in each jar when packing the fruit.
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 main fruit, which softens and turns colour as it cooks into the preserve.
- White sugar
- Adds sweetness and helps set the preserve by thickening the cooking syrup.
- Fresh lemons
- Add acidity and brightness that balance the sweetness of the sugar.
The step that matters
Cook the quinces in small batches over low heat. Boiling too hard or stirring can break the tender fruit apart and scorch the sugar on the pan bottom. Cooking a little at a time and lifting pieces out as they become tender keeps each piece whole and the syrup clear.
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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