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 Tarts
Ingredients
Directions
Peel, core, and boil the apples in ½ cup of water until soft.
Mash the apples until very smooth.
Add the egg yolks (or whole eggs), lemon juice, and grated lemon rind to the apples.
Mix well until fully combined.
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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Egg + lemontop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
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Apple + eggtop 30% of all pairsSmell alikelowCooked together7,461 recipes
Shared aroma: 2,4-decadienal (seaweed).
Egg and lemon barely smell alike, yet cooks put them together in 44,316 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
Swap the apple
How well each one fits the dish's main ingredients (egg, lemon):
- Orangefits better
- Limefits better
- Raspberryfits better
- Applethe original
Fit is the average pairing score against egg, lemon. Candidates are from the same food group and used in at least 100 recipes.
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