Why it works: Apple and lemon are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 7,551 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Siberian Crab Jelly
Ingredients
Directions
Prepare the juice
Place crab apples in a preserving kettle and cover with water.
Boil until soft, then pour into a jelly bag and let drip.
Make the jelly
Measure equal weights of crab apple juice and sugar.
Slice the lemons and add them to the mixture.
Boil for 10 minutes.
Remove lemon slices before finishing.
If desired, strain the jelly again for clarity.
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 + lemontop 14% of all pairsSmell alikemoderateCooked together7,551 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Crab + lemontop 16% of all pairsSmell alikemoderateCooked together387 recipes
Shared aroma: 1-octen-3-ol (mushroom, 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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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Crab + sugartop 19% of all pairsSmell alikemoderateCooked together407 recipes
Shared aroma: hexanal (grass, green).
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 natural pectin and acidity that help the jelly set.
- Sugar
- Sweetens the jelly and helps it set firm when boiled with the juice.
- Lemons
- Add acidity that supports pectin setting and brightens the flavour.
The step that matters
Boil for 10 minutes. Boiling the juice and sugar mixture for the stated time concentrates sugar and activates pectin. Too short a boil can leave the jelly runny, while overcooking can make it dull or sticky.
Swap the apple
How well each one fits the dish's main ingredients (crab, sugar, lemon):
- Limefits better
- Orangefits better
- Raisinfits better
- Applethe original
Fit is the average pairing score against crab, 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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