Why it works: Onion and cucumber 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 ↓
Modern Cookery
Ingredients
Directions
Prepare
Chop the onions and cucumbers.
Core and chop the apples or tomatoes.
Make the soup
In a large pot, combine all ingredients with the water, broth, or stock.
Bring to a boil, then simmer for 30 to 40 minutes until vegetables are tender.
Add curry powder and salt, and simmer for an additional 20 to 32 minutes.
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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Onion + cucumbertop 8% of all pairsSmell alikestrongCooked together6,050 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Cucumber + appletop 15% of all pairsSmell alikemoderateCooked together363 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + appletop 19% of all pairsSmell alikemoderateCooked together3,206 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
- Onions
- Soften into the soup and add body and mild sweetness as they cook down.
- Cucumbers
- Add moisture and a light, fresh vegetable base to the soup.
- Apples or tomatoes
- Add sweetness or acidity and help give the soup body as they break down.
- Curry powder
- Provides the warm, aromatic spice flavour that defines the soup.
The step that matters
Adding the curry powder and salt. Spices bloom and taste more rounded after simmering in liquid, but the soup can turn bitter or dusty if the powder is not fully mixed in. Simmering the curry powder with the vegetables lets its flavour spread evenly and mellow.
Swap the apple
How well each one fits the dish's main ingredients (onion, cucumber):
- Avocadofits better
- Limefits better
- Pumpkinfits better
- Applethe original
Fit is the average pairing score against onion, cucumber. 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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