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 Cake
Ingredients
Directions
Make the apple filling
Combine sugar and water in a pot and bring to a boil to create a syrup.
Add the sliced apples and lemon rind, then boil until thick.
Set and serve
Pour the mixture into a mold and let it cool.
Serve cold with custard or cream around it.
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.
Photo for illustrative purposes only · Contact us to use it
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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Sugar + appletop 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).
Sugar and apple 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
- White sugar
- Sweetens the dish and, when boiled with water, forms the syrup that cooks the apples.
- Apples
- Provide the bulk of the dish; their pectin and starch help the mixture thicken as it cooks down.
- Lemon rind
- Adds aroma and a bright citrus note that balances the sweetness.
The step that matters
Boiling the apples until thick. Apples release pectin and water as they cook. If the mixture is not boiled long enough, it will stay loose and fail to set firmly in the mold. Cooking it down until thick concentrates the flavour and gives the cake its body.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, apple):
- Pearfits better
- Vanillafits better
- Apricotfits better
- Lemonthe original
Fit is the average pairing score against sugar, apple. 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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