Why it works: Carrot and thyme match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 4,563 recipes. Both carry cuminaldehyde, which smells Spicy, cumin. The science ↓
Ox-tail Soup
Ingredients
Directions
Prepare the meat and vegetables
Cut the ox-tail into several pieces and fry them brown in butter.
Slice the onions and carrots, then brown them in the same pan after removing the ox-tail.
Tie the browned onions and carrots with the thyme in a bag and place it in a soup pot.
Add the pieces of ox-tail and the sliced beef to the pot.
Simmer and finish
Grate the two whole carrots and add them to the pot along with 4 quarts of cold water, salt, and pepper.
Boil for 4 to 6 hours, depending on the size of the tail.
Strain the soup 15 minutes before serving and thicken with 2 tablespoons of browned flour.
Boil for an additional 10 minutes.
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 + thymetop 3% of all pairsSmell alikestrongCooked together4,563 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
-
Thyme + peppertop 4% of all pairsSmell alikemoderateCooked together11,585 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
Carrot + peppertop 6% of all pairsSmell alikestrongCooked together14,555 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
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
- Ox-tail
- Releases gelatin and rich flavor into the broth during the long simmer.
- Lean beef
- Adds meaty flavor and body to the broth as it cooks.
- Browned flour
- Thickens the soup and adds a toasted, nutty depth of flavor.
- Onions
- Browning them adds sweetness and savory depth to the broth.
- Carrots
- Browning and simmering add sweetness and aroma to the broth.
The step that matters
Boil for 4 to 6 hours. A long, gentle boil is needed so collagen in the ox-tail breaks down into gelatin, giving the broth body. The time depends on the size of the tail, so check that the meat is tender before straining.
Swap the onion
How well each one fits the dish's main ingredients (beef, carrot, thyme, flour, pepper, butter):
- Parsnipfits better
- Leekfits better
- Turnipfits better
- Onionthe original
Fit is the average pairing score against beef, carrot, thyme, flour, pepper, butter. 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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