Why it works: Cucumber and onion match in chemistry and in kitchens. They rank in the top 8% of all ingredient pairs, and cooks put them together in 6,050 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Cucumber Salad
Ingredients
Directions
Prepare the cucumbers
Slice the cucumbers and salt them in an earthen dish.
Let them stand for 2 hours.
Drain the cucumbers in a colander for 30 minutes.
Prepare the onions
Peel and slice the onions.
Fry them in lard until golden.
Make the dressing and cook
In a bowl, beat together the egg yolk, sweet cream, and water.
Combine the drained cucumbers and fried onions in a pot.
Pour the beaten mixture over them.
Dredge a little flour on top.
Add the sharp vinegar.
Boil for 5 minutes.
Serve hot.
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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Cucumber + oniontop 8% of all pairsSmell alikestrongCooked together6,050 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Cucumber + vinegartop 8% of all pairsSmell alikemoderateCooked together4,734 recipes
Shared aroma: 2-methylbutyl acetate (fruit).
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Cucumber + flourtop 13% of all pairsSmell alikemoderateCooked together2,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
Egg and flour 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
- Cucumbers
- Make up the bulk of the salad and release water when salted, so they must be drained.
- Onions
- Fried until golden, they add sweetness and a savoury, mellow flavour.
- Egg yolk
- Combined with cream and water, it thickens the sauce as it heats and gives it richness.
- Sweet cream
- Adds fat and richness, softening the sharpness of the vinegar.
- Sharp vinegar
- Provides the acidity that gives the salad its tang.
The step that matters
Boil the egg and cream mixture after adding it to the vegetables. Egg yolk thickens only when heated, but overheating it can curdle it. Bringing the mixture to a gentle boil for the stated time lets it set into a smooth sauce rather than leaving it runny or grainy.
Swap the onion
How well each one fits the dish's main ingredients (cucumber, egg, cream, vinegar, flour):
- Chivefits better
- Horseradishfits better
- Shallotfits better
- Onionthe original
Fit is the average pairing score against cucumber, egg, cream, vinegar, flour. 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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