Why it works: Spinach and purslane share more aroma than cooks usually use. They rank in the top 1% of all ingredient pairs, and cooks put them together in 15 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Herb Soup
Ingredients
Directions
Clean and chop the lettuces, spinach, purslane, beet leaves, onions, and parsley.
Remove seeds from the cucumbers and slice them.
In a saucepan, melt the butter over low heat, then add the chopped vegetables.
Cover and cook on low for 2 hours, stirring occasionally.
Add boiling water to achieve desired thickness and season with pepper and salt.
Simmer for 1 hour, then add boiled and chopped asparagus tops.
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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Spinach + purslanetop 1% of all pairsSmell alikestrongCooked together15 recipes
Shared aroma: coumarin (sweet, hay).
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Purslane + cucumbertop 1% of all pairsSmell alikestrongCooked together22 recipes
Shared aroma: coumarin (sweet, hay).
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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Purslane + parsleytop 2% of all pairsSmell alikestrongCooked together32 recipes
Shared aroma: coumarin (sweet, hay).
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Spinach + cucumbertop 3% of all pairsSmell alikestrongCooked together355 recipes
Shared aroma: trans-2-hexenal (green, leafy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
Swap the onion
How well each one fits the dish's main ingredients (cabbage, spinach, purslane, parsley, cucumber, butter, pepper):
- Lettucefits better
- Chivefits better
- Beetrootfits better
- Onionthe original
Fit is the average pairing score against cabbage, spinach, purslane, parsley, cucumber, butter, pepper. Candidates are from the same food group and used in at least 100 recipes.
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