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 ↓
Cucumbers, to Dress
Ingredients
Directions
Prepare
Pare the cucumber and cut it into thin slices or round ribbons, discarding the watery part.
Sprinkle a little coarse sea salt over the slices and let them sit for a few minutes to drain excess water.
Dress and serve
Place the slices on a clean dish and drizzle with oil and vinegar.
Add more salt and pepper to taste.
Optionally serve with onion slices or add a teaspoon of pickled onion vinegar.
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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Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Cucumber + peppertop 12% of all pairsSmell alikemoderateCooked together5,991 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Vinegar + oniontop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cucumber
- Provides the main body and crisp, watery texture of the salad.
- Coarse sea salt
- Draws excess water out of the cucumber slices, concentrating flavour and firming the texture.
- Oil
- Coats the slices, adding fat and a smooth mouthfeel to the dressing.
- Vinegar
- Adds acidity that brightens the flavour and balances the oil.
The step that matters
Salting and draining the cucumber. Salt draws water out of the cucumber by osmosis. If the slices are not given time to drain and are dressed too early, the dish becomes watery and the dressing is diluted. Patting the slices dry before dressing helps keep the salad crisp.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (cucumber, vinegar, pepper):
- Capsicumfits better
- Radishfits better
- Mustardfits better
- Onionthe original
Fit is the average pairing score against cucumber, vinegar, pepper. 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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