Why it works: Carrot and turnip match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 8,002 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Tomato Soup
Ingredients
Directions
Make the soup base
In a large pot, boil the beef stock with the carrot, turnip, beet, and onions for 45 minutes.
Strain the mixture through a sieve.
Add the can of tomatoes and boil for 15 minutes.
Strain again and season with salt and pepper.
Make the roux and finish
In a separate saucepan, heat the butter until light brown.
Add the flour to the hot butter and mix thoroughly off the heat.
Stir in the sugar and return to heat until it boils.
Boil for 15 minutes and strain.
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.
Photo for illustrative purposes only · Contact us to use it
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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Carrot + turniptop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
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Turnip + oniontop 5% of all pairsSmell alikestrongCooked together7,585 recipes
Shared aroma: coumarin (sweet, hay).
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Carrot + tomatotop 6% of all pairsSmell alikestrongCooked together3,606 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Carrot + oniontop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 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
- Beef stock
- Forms the liquid base that carries the flavour of the vegetables and tomatoes.
- Tomatoes
- Provide the main flavour, acidity and colour of the soup.
- Butter
- Carries flavour and, browned with flour, adds a nutty aroma.
- Flour
- Thickens the soup as a roux when cooked in butter.
- Onions
- Add savoury sweetness and depth to the stock as it simmers.
- Sugar
- Balances the acidity of the tomatoes with a touch of sweetness.
The step that matters
Adding the flour to the hot butter. Flour must be mixed in fully off the heat so it does not clump. Cooking it in the butter first removes the raw starch taste and lets it thicken the soup evenly.
Swap the tomato
How well each one fits the dish's main ingredients (beef, carrot, turnip, onion, butter, flour, sugar):
- Leekfits better
- Parsnipfits better
- Chivefits better
- Tomatothe original
Fit is the average pairing score against beef, carrot, turnip, onion, butter, flour, sugar. 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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