Why it works: Apple and grape match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,659 recipes. Both carry 2-isobutyl-3-methoxypyrazine, which smells green bell pepper, earthy. The science ↓
Preserved Crab Apples
Ingredients
Directions
Prepare the apples
Wash the crab apples.
Cover the bottom of a preserving kettle with grape leaves.
Place the apples in the kettle with a little water and cover closely.
Simmer gently over the fire until the apples turn yellow.
Remove the apples and spread them on a large dish to cool.
Pare and core the apples.
Return the apples to the kettle with fresh vine leaves and a little water.
Simmer until the apples turn green without boiling.
Make the syrup and cook
Remove the apples, weigh them, and use 1 pound of loaf sugar for every pound of apples.
Dissolve the sugar in just enough water.
Boil the sugar mixture and skim it until clear.
Add the apples and boil until they are clear and soft.
Transfer the apples to jars and pour the warm syrup over them.
When cool, seal the jars with brandy paper.
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 + grapetop 1% of all pairsSmell alikestrongCooked together1,659 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
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Apple + sugartop 18% of all pairsSmell alikelowCooked together16,478 recipes
Shared aroma: beta-damascenone (apple, rose).
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Crab + sugartop 19% of all pairsSmell alikemoderateCooked together407 recipes
Shared aroma: hexanal (grass, green).
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Crab + appletop 22% of all pairsSmell alikelowCooked together343 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Sugar + grapetop 23% of all pairsSmell alikelowCooked together7,490 recipes
Shared aroma: beta-damascenone (apple, rose).
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
- Crab apples
- Provide the fruit, pectin and tartness that give the preserve its body and flavour.
- Loaf sugar
- Sweetens the preserve and, when boiled into syrup, helps preserve the fruit and make it clear.
- Grape leaves
- Lend a subtle aroma and help protect the apples from scorching on the kettle base.
- Vine leaves
- Add a subtle aroma and help keep the apples green and firm during simmering.
The step that matters
Simmer the apples without boiling. Gentle simmering softens the fruit and turns it green without breaking it apart. A hard boil can split the apples and cloud the syrup.
Swap the grape
How well each one fits the dish's main ingredients (crab, apple, sugar):
- Pearfits better
- Quincefits better
- Plumfits about as well
- Grapethe original
Fit is the average pairing score against crab, 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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