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 Fritters
Ingredients
Directions
Prepare the apples
Peel and slice apples into ¼‑inch thick rounds, removing the core.
Make the batter
In a bowl, mix flour, salt, oil, and egg yolk, adding water gradually until smooth and creamy.
Whip the egg white until firm and fold it into the batter.
Fry and serve
Heat fat in a frying pan until hot.
Dip each apple slice in the batter and fry one at a time until golden brown, turning as needed.
Serve hot, sprinkled with sugar and optionally drizzled with lemon juice or spirits.
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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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + lemontop 17% of all pairsSmell alikemoderateCooked together30,404 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Apple + sugartop 18% of all pairsSmell alikelowCooked together16,478 recipes
Shared aroma: beta-damascenone (apple, rose).
Flour and egg barely smell alike, yet cooks put them together in 106,462 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
- Flour
- Forms the structure of the batter that coats and holds the fried crust together.
- Egg white
- Whipped and folded in, it lightens the batter and helps it puff while frying.
- Egg yolk
- Adds richness and helps the batter blend smoothly with the flour and oil.
- Oil
- Adds fat to the batter, giving a tender texture and a more even golden colour.
- Apples
- The main ingredient, whose slices are coated in batter and cooked until tender.
The step that matters
Keeping the fat hot. The fat must be hot before frying. If it is too cool, the batter absorbs more oil, the fritters cook slowly, and they turn out greasy and heavy. Hot fat sets the crust quickly, so the inside cooks through with a crisp outside.
Swap the lemon
The recipe marks lemon as optional. How well each one fits the dish's main ingredients (flour, egg, apple, sugar):
- Raisinfits better
- Vanillafits better
- Pearfits better
- Lemonthe original
Fit is the average pairing score against flour, egg, 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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