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 ↓
Apple Sauce
Ingredients
Directions
Make the apple base
Cook the apples in boiling water until very tender.
Stir the apples thoroughly to remove lumps.
Dissolve the gelatine in warm water and add it to the apples along with the sugar.
Set and serve
Pour the mixture into bowls and let it cool until it sets like jelly.
For a decorative version, pare and halve the apples, then cook them in boiling water with sugar until tender.
Remove the apples carefully and boil the syrup for an additional 30 minutes.
Pour the syrup over the apples and serve cold, adding lemon pieces for extra flavor if desired.
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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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).
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 the bulk and the fruit flavor that forms the sauce.
- Sugar
- Adds sweetness and balances the tartness of the green apples.
- Gelatine
- Sets the mixture so it firms into a jelly-like texture when cooled.
The step that matters
Dissolving the gelatine in warm water. Gelatine must be fully dissolved before it is mixed in, otherwise it can clump or set unevenly. It only firms properly when cooled, so the mixture needs to cool undisturbed to set like jelly.
Swap the lemon
The recipe marks lemon as optional. How well each one fits the dish's main ingredients (apple, sugar):
- Pearfits better
- Vanillafits better
- Apricotfits better
- Lemonthe 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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