Why it works: Lemon and orange match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Quince Marmalade
Ingredients
Directions
Prepare the quinces
Pare and core the quinces, then slice them thin.
Place the sliced quinces in a pot and cover with enough water to cook until tender.
Make the marmalade
Mash the cooked quinces and press through a sieve or colander.
Return the quince puree to the pot, weigh it, and add ¾ pound of sugar for every pound of fruit.
Cook over moderate heat for 30 minutes.
Optionally, add lemon or orange juice for extra flavor.
Jar
Transfer to jars and seal.
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.
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Lemon + orangetop 1% of all pairsSmell alikestrongCooked together10,634 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Quince + orangetop 9% of all pairsSmell alikemoderateCooked together152 recipes
Shared aroma: ethyl isobutyrate (fruity, ethereal).
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Quince + lemontop 11% of all pairsSmell alikestrongCooked together336 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Sugar + orangetop 20% of all pairsSmell alikelowCooked together19,212 recipes
Shared aroma: beta-damascenone (apple, rose).
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 pulp that thickens the marmalade as it cooks.
- Sugar
- Sweetens the puree and helps it set into a thick, spreadable preserve.
- Lemon juice
- Adds acidity and brightness, and helps balance the sweetness of the fruit.
- Orange juice
- Adds acidity and citrus aroma, contributing extra flavor to the preserve.
The step that matters
Cooking the puree with sugar. Sugar is added by weight to the puree and must be cooked long enough to thicken it. Undercooking leaves a runny preserve, while overcooking can scorch the sugar and darken the flavor.
Swap the lemon
The recipe marks lemon as optional. How well each one fits the dish's main ingredients (quince, sugar, orange):
- Vanillafits better
- Applefits better
- Pearfits about as well
- Lemonthe original
Fit is the average pairing score against quince, sugar, orange. 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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