Why it works: Carrot and celery match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,173 recipes. Both carry myristicin, which smells spice, warm. The science ↓
Ox- Tail Soup
Ingredients
Directions
Prepare
Cut the ox-tails into joints.
In a large pot, combine the ox-tails, gravy beef, ham bone, carrots, turnips, celery, onions, bread crust, sweet herbs, cloves, and peppercorns.
Simmer
Add enough water to cover the ingredients and boil gently for several hours.
Remove the ox-tails when tender and continue boiling the beef and vegetables for 4 more hours.
Finish the soup
Strain the broth and remove the fat as you would for clear gravy soup.
If not using ham bones, add ketchup or prepared sauces, a glass of wine, and cayenne to taste.
Return the ox-tails to the pot along with some carrot and turnip cut into fancy shapes.
For a thicker soup, thicken the broth with brown roux before serving.
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.
-
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 + clovetop 5% of all pairsSmell alikestrongCooked together5,873 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
-
Turnip + oniontop 5% of all pairsSmell alikestrongCooked together7,585 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
- Release gelatin and meaty flavour into the broth as they simmer, giving body.
- Gravy beef
- Adds rich beefy flavour and depth to the broth during long simmering.
- Ham bone
- Contributes savoury, smoky depth to the stock as it simmers.
- Brown roux
- Thickens the broth and adds a toasted, nutty colour and flavour.
The step that matters
Simmer gently rather than boiling hard. A gentle simmer extracts flavour and collagen from the bones and meat while keeping the broth clear. Vigorous boiling emulsifies fat into the liquid and makes the soup cloudy and greasy.
Swap the clove
How well each one fits the dish's main ingredients (beef, ham, carrot, turnip, celery, onion, bread):
- Parsleyfits better
- Marjoramfits better
- Thymefits better
- Clovethe original
Fit is the average pairing score against beef, ham, carrot, turnip, celery, onion, bread. 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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