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 ↓
Oxtaii, Soup
Ingredients
Directions
Prepare the tails
Cut the ox tails into pieces at the joints and wash them.
Place the tails in a stew pan with the butter.
Make the soup
Slice the vegetables and add them to the pan along with the peppercorns and herbs.
Add ½ cup of water and stir over high heat until the juices are released.
Fill the pan with the remaining water and bring to a boil, then add the salt.
Skim the surface and simmer gently for 4 hours, or until the tails are tender.
Finish and serve
Remove the tails, skim the soup, and strain it.
Thicken the soup with flour and flavor it with ketchup.
Return the tails to the soup, simmer for 5 minutes, and 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.
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).
-
Carrot + celerytop 1% of all pairsSmell alikestrongCooked together10,173 recipes
Shared aroma: myristicin (spice, warm).
-
Carrot + turniptop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
-
Turnip + celerytop 2% of all pairsSmell alikemoderateCooked together4,418 recipes
Shared aroma: coumarin (sweet, hay).
-
Carrot + leektop 3% of all pairsSmell alikestrongCooked together1,310 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
- Ox tails
- Provide the meat and gelatin that give the soup its body and rich flavor.
- Butter
- Browns the tails and carries flavor from the aromatics into the broth.
- Onions
- Add sweetness and savory depth as they cook down into the broth.
- Carrots
- Add natural sweetness and body to the broth as they simmer.
- Turnips
- Add mild sweetness and earthy flavor to the broth as they simmer.
- Flour (in the method)
- Thickens the strained soup so it has a fuller texture.
The step that matters
Skim the surface and simmer gently for 4 hours. Gentle simmering keeps the broth clear and lets collagen in the tails break down slowly, while a hard boil would make the soup cloudy and greasy.
Swap the clove
How well each one fits the dish's main ingredients (ham, butter, carrot, turnip, onion, leek, celery):
- Parsleyfits better
- Thymefits better
- Capersfits better
- Clovethe original
Fit is the average pairing score against ham, butter, carrot, turnip, onion, leek, 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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