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
Pare, core, and quarter the quinces, then weigh them.
In a preserving kettle, combine the parings and cores with enough water to cover and boil for 30 minutes.
Strain the liquid through a fine sieve and return it to the kettle.
Cook the quinces
Boil the quinces in the juice a little at a time until tender, then lift them out with a drainer.
If the liquid is scarce, add more water.
Once all quinces are done, add the sugar to the kettle and boil for 10 minutes.
Add the quinces back to the kettle and boil for about 1 hour and 15 minutes on low heat until they change color.
Occasionally slide a silver spoon under the quinces to prevent burning, but do not stir.
Fill jars
When filling jars, place a slice or two of lemon in each jar.
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 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):
- 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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