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 ↓
Jelly Making
Ingredients
Directions
Prepare the juice
Strain the fruit juice to remove pulp without using pressure.
Measure the juice.
Boil and set
Boil it rapidly in a clean preserving pan: raspberries for 5 minutes, currants/gooseberries for 8-15 minutes, plums/apples/quinces/strawberries for 20-25 minutes.
Stir and skim the juice while boiling.
Remove from heat.
Stir in the bruised, heated sugar until dissolved.
Boil the juice again for 2-20 minutes until it jellies strongly on a spoon.
Pour the jelly into glasses or molds.
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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Plum + appletop 2% of all pairsSmell alikestrongCooked together404 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Plum + quincetop 2% of all pairsSmell alikestrongCooked together92 recipes
Shared aroma: ethyl cinnamate (sweet, balsamic).
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Currant + plumtop 11% of all pairsSmell alikemoderateCooked together255 recipes
Shared aroma: ethyl cinnamate (sweet, balsamic).
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Quince + lemontop 11% of all pairsSmell alikestrongCooked together336 recipes
Shared aroma: trans-2-hexenal (green, leafy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Fruit juice
- Provides the liquid and the natural pectin and acid that let the jelly set.
- Sugar
- Sweetens the jelly and helps it set firmly as the juice boils down.
The step that matters
Boiling the juice again until it jellies. Setting depends on boiling long enough to concentrate the sugar and pectin. Too little boiling leaves the jelly runny, while too much can make it stiff or cloudy. Testing on a cold spoon shows when it is ready.
Swap the lemon
The recipe marks lemon as optional. How well each one fits the dish's main ingredients (currant, plum, apple, quince, sugar):
- Pearfits better
- Apricotfits better
- Peachfits better
- Lemonthe original
Fit is the average pairing score against currant, plum, apple, quince, 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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