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 ↓
Parker House Soup
Ingredients
Directions
Make the soup base
Combine beef stock, carrot, turnip, beet, onions, and tomatoes in a large pot.
Boil the mixture for 1 hour, then strain it.
Make the roux and finish
Heat butter in a pan until light brown, then remove the pan from heat.
Stir flour into the browned butter until well mixed, then add this mixture to the strained soup.
Season the soup with salt, pepper, and sugar.
Return the soup to the heat and stir until it boils for 5 minutes, skimming off any foam.
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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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 + peppertop 6% of all pairsSmell alikestrongCooked together14,555 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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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).
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.
- Butter
- Browned to add a nutty aroma and fat for the thickening roux.
- Flour
- Mixed with the browned butter to thicken the soup.
- Tomatoes
- Add acidity and body to the soup.
- Onions
- Add savoury sweetness and aroma as they cook into the stock.
The step that matters
Stir flour into the browned butter until well mixed. Flour lumps form if it is not fully blended into the fat before it meets the hot soup, and a properly mixed roux thickens the soup evenly.
Swap the tomato
How well each one fits the dish's main ingredients (beef, carrot, turnip, onion, butter, flour, pepper):
- Leekfits better
- Parsnipfits better
- Chivefits better
- Tomatothe original
Fit is the average pairing score against beef, carrot, turnip, onion, butter, flour, pepper. 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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