Why it works: Turnip and onion match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 7,585 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
A Quickly Made Turnip Soup
Ingredients
Directions
In a pot, combine the turnips and stock.
Stew gently for 25 to 30 minutes until the turnips are soft.
Press the mixture through a sieve to create a smooth puree.
Return the puree to the pot and add another quart of stock.
Season with salt, white pepper, and sugar, then simmer for 1-2 minutes.
Skim off any foam and serve hot, adding cream if desired.
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 + oniontop 5% of all pairsSmell alikestrongCooked together7,585 recipes
Shared aroma: coumarin (sweet, hay).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Veal + oniontop 17% of all pairsSmell alikelowCooked together6,841 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Onion + creamtop 18% of all pairsSmell alikelowCooked together10,827 recipes
Shared aroma: 2-nonanone (fruity, floral).
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Turnip + white peppertop 20% of all pairsSmell alikelowCooked together275 recipes
Shared aroma: 2-methylbutyraldehyde (malty, chocolate).
Onion and cream barely smell alike, yet cooks put them together in 10,827 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Turnips
- Form the body of the soup, becoming soft and sweet as they stew and then smooth as they are pureed.
- Stock
- Provides the liquid that cooks the turnips and carries the savory flavor of the soup.
- Cream
- Adds richness and a smoother, rounder mouthfeel when stirred in at serving.
The step that matters
Press the mixture through a sieve. Sieving the cooked turnips breaks down the fibrous pieces and leaves a smooth puree; skipping or rushing this leaves a grainy, uneven texture.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (turnip, veal, white pepper, sugar, cream):
- Leekfits better
- Arrowrootfits better
- Parsnipfits better
- Onionthe original
Fit is the average pairing score against turnip, veal, white pepper, sugar, cream. 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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