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 ↓
Julienne-soup with Vegetable Broth
Ingredients
Directions
Prepare
Cut the carrots, turnips, celery roots, lettuce or sorrel, leek, and onion into fillets.
Make the soup
In a pot, fry the vegetables in butter until the moisture evaporates.
Add the fish broth or vegetable broth and bring to a simmer.
For a vegetable broth, combine dry peas, dry mushrooms, and water in a separate pot and cook until tender.
Season the soup well before serving.
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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Turnip + lettucetop 1% of all pairsSmell alikestrongCooked together526 recipes
Shared aroma: coumarin (sweet, hay).
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Lettuce + leektop 1% of all pairsSmell alikestrongCooked together217 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Carrot + turniptop 1% of all pairsSmell alikestrongCooked together8,002 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
- Butter
- Carries the heat for frying and adds rich flavor to the vegetables.
- Onion
- Softens and turns mildly sweet when fried, building the soup's aromatic base.
- Carrots
- Release natural sugars as they cook, adding gentle sweetness and color.
- Dry peas
- Their starch softens and thickens the broth, giving it body.
- Dry mushrooms
- Add savory, umami depth to the broth.
The step that matters
Frying the vegetables in butter until the moisture evaporates. Driving off water lets the vegetables brown slightly and concentrate their sugars instead of steaming. Rushing this step leaves the soup watery and flat in flavor.
Swap the onion
How well each one fits the dish's main ingredients (carrot, turnip, celery, lettuce, leek, butter, fish):
- Parsnipfits better
- Beetrootfits better
- Endivefits better
- Onionthe original
Fit is the average pairing score against carrot, turnip, celery, lettuce, leek, butter, fish. 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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