Why it works: Turnip and leek match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,046 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Mixed Vegetable Soup
Ingredients
Directions
Bring the water to a rolling boil in a large pot.
Add all the vegetables except the potatoes and tomatoes, then boil rapidly for 10 minutes.
Reduce heat to maintain a gentle boil for 1 hour.
After 1 hour, add the potatoes, tomatoes, butter, green pepper, salt, and pepper.
Cook for an additional hour with the lid partially off.
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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Turnip + leektop 1% of all pairsSmell alikestrongCooked together1,046 recipes
Shared aroma: coumarin (sweet, hay).
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Carrot + celerytop 1% of all pairsSmell alikestrongCooked together10,173 recipes
Shared aroma: myristicin (spice, warm).
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Carrot + turniptop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
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Cabbage + turniptop 2% of all pairsSmell alikestrongCooked together897 recipes
Shared aroma: coumarin (sweet, hay).
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Turnip + celerytop 2% of all pairsSmell alikemoderateCooked together4,418 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cabbage
- Forms the bulk of the soup and adds mild sweetness as it simmers.
- Carrots
- Add sweetness and body as they soften during the long simmer.
- Potatoes
- Release starch as they cook, thickening the broth slightly and giving it body.
- Tomatoes
- Add acidity and savory depth, and break down to color and flavor the broth.
- Butter or drippings
- Adds fat and richness, carrying flavor through the soup.
The step that matters
Adding the potatoes and tomatoes after the first hour. Potatoes added too early break down and turn mushy, while tomatoes added too early can dull fresh flavor. Waiting until the vegetables are nearly tender keeps texture and flavor distinct.
Swap the tomato
How well each one fits the dish's main ingredients (cabbage, carrot, potato, turnip, onion, leek, celery):
- Parsnipfits better
- Beetrootfits better
- Chivefits better
- Tomatothe original
Fit is the average pairing score against cabbage, carrot, potato, turnip, onion, leek, celery. 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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