Why it works: Cucumber and arrowroot share more aroma than cooks usually use. They rank in the top 5% of all ingredient pairs, and cooks put them together in 28 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Cucumber Soup
Ingredients
Directions
Prepare
Pare, split, and empty the cucumbers, then sprinkle with salt and let drain for 1 hour.
In a deep saucepan, combine the cucumbers and the white part of the onions, covering with veal stock.
Cook and strain
Stew gently for 45 to 75 minutes until tender.
Pass the mixture through a fine sieve and add more stock to reach desired soup quantity.
Finish and serve
Stir in arrowroot or rice flour to thicken as needed, then add boiling cream and serve immediately.
For a variation, mix egg yolks with chili vinegar and stir in just before serving, without boiling.
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 + arrowroottop 5% of all pairsSmell alikestrongCooked together28 recipes
Shared aroma: coumarin (sweet, hay).
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Cucumber + oniontop 8% of all pairsSmell alikestrongCooked together6,050 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Cucumber + vinegartop 8% of all pairsSmell alikemoderateCooked together4,734 recipes
Shared aroma: 2-methylbutyl acetate (fruit).
-
Onion + arrowroottop 11% of all pairsSmell alikestrongCooked together340 recipes
Shared aroma: coumarin (sweet, hay).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cucumbers
- Form the body of the soup and give its fresh, delicate flavour once stewed and strained.
- Veal stock
- Provides the savoury liquid base that cooks the cucumbers and carries the flavour of the soup.
- Arrowroot or rice flour
- Thickens the strained liquid so the soup becomes smooth and lightly body-rich.
- Boiling cream
- Adds richness and a silky mouthfeel to the finished soup.
- Egg yolks
- Enriches and thickens the soup as a variation when stirred in without boiling.
The step that matters
Stirring in the egg yolks without boiling. Egg yolks thicken by gentle heat and curdle or scramble if boiled, leaving the soup grainy. Adding them off the heat, just before serving, keeps the texture smooth.
Swap the arrowroot
How well each one fits the dish's main ingredients (cucumber, onion, veal, pepper, cream, egg, vinegar):
- Chivefits better
- Capsicumfits better
- Spinachfits better
- Arrowrootthe original
Fit is the average pairing score against cucumber, onion, veal, pepper, cream, egg, vinegar. 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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