Why it works: Apple and quince work together. They rank in the top 1% of all ingredient pairs, and cooks put them together in 506 recipes. Both carry ethyl isobutyrate, which smells fruity, ethereal. The science ↓
Quince and Apple Marmalade
Ingredients
Directions
Cook the fruit
Boil the apples in the quince juice for 45 to 60 minutes.
Add sugar and finish
Remove from heat and mix in the powdered sugar until slightly dissolved.
Return the pan to a brisk fire and boil the mixture for an additional 20 minutes, stirring constantly.
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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Apple + quincetop 1% of all pairsSmell alikemoderateCooked together506 recipes
Shared aroma: ethyl isobutyrate (fruity, ethereal).
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Apple + sugartop 18% of all pairsSmell alikelowCooked together16,478 recipes
Shared aroma: beta-damascenone (apple, rose).
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Quince + sugartop 21% of all pairsSmell alikemoderateCooked together1,444 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
Apple and sugar barely smell alike, yet cooks put them together in 16,478 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
- Apples
- Provide body and fruit flavor, and their pectin helps the marmalade thicken as it cooks.
- Quince juice
- Adds natural pectin for setting, plus tart, aromatic flavor.
- Powdered sugar
- Sweetens the fruit and, with heat, helps the mixture set and keeps it preserved.
The step that matters
Stirring constantly during the final boil. Sugar is dense and sits at the bottom of a hot pan, so it can scorch and stick. Constant stirring spreads the heat and keeps the sugar dissolved while the pectin and sugar concentrate to set the marmalade.
Swap the quince
How well each one fits the dish's main ingredients (apple, sugar):
- Pearfits better
- Vanillafits about as well
- Apricotfits about as well
- Quincethe original
Fit is the average pairing score against apple, sugar. 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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