Why it works: Turnip and parsnip match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 590 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Vegetable Soup
Ingredients
Directions
Prepare
Cut up the vegetables of your choice, ensuring to include potatoes or beans for thickening.
Make the base
In a saucepan, heat the butter until very hot.
Add the cut onions and stir to prevent burning until they are nicely browned.
Stir in the flour until it reaches the same color as the onions.
Pour in the hot water, then add pepper and salt, followed by the other vegetables.
Simmer and serve
Let the mixture simmer for two hours, adding more hot water as needed.
Press the soup through a colander and return it to the pot to simmer until ready to serve.
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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Turnip + parsniptop 1% of all pairsSmell alikestrongCooked together590 recipes
Shared aroma: coumarin (sweet, hay).
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Carrot + parsniptop 1% of all pairsSmell alikestrongCooked together1,097 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
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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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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
- Potatoes or beans
- Break down during simmering to thicken the soup body.
- Butter
- Carries heat and browns the onions, adding richness to the base.
- Flour
- Browns with the onions and thickens the liquid into a body.
- Onions
- Caramelise when browned, adding sweetness and depth of flavour.
The step that matters
Stirring the onions while they brown. Onions scorch quickly in hot butter, and scorched sugars turn bitter and dark. Constant stirring keeps them evenly golden, which gives the soup its flavour base.
Swap the peas
How well each one fits the dish's main ingredients (onion, carrot, turnip, potato, beans, parsnip, celery):
- Lentilsfits better
- Chickpeafits better
- Chestnutfits better
- Peasthe original
Fit is the average pairing score against onion, carrot, turnip, potato, beans, parsnip, 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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