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
Pare, core, and quarter the quinces, then weigh them.
In a preserving kettle, cover the cores with water and boil for 30 minutes.
Strain the liquid through a fine sieve and return the juice to the kettle.
Cook the quinces
Add the quinces a little at a time.
Boil until tender.
Remove with a drainer.
If the liquid is low, add more water.
Add the sugar.
Boil for 10 minutes.
Add the quinces back in.
Boil for about 1 hour and 15 minutes on low heat.
Slip a silver spoon under the quinces occasionally, and do not stir.
Slice the lemons thinly.
Place a slice or two in each jar when filling.
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 body and pectin-rich flesh that gives the preserve its structure and set.
- White sugar
- Adds sweetness and, with the cooking, helps the fruit thicken and preserve.
- Lemons
- Add acidity and a bright flavour that balances the sweetness.
The step that matters
Do not stir the quinces during the long simmer. Stirring breaks the tender quince pieces apart and makes the preserve cloudy and mushy. Occasionally sliding a spoon under them lets the fruit cook evenly without damage.
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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