Why it works: Clove and parsley match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 6,768 recipes. Both carry cuminaldehyde, which smells Spicy, cumin. The science ↓
Ox-tail Soup
Ingredients
Directions
Prepare
Wash and cut the ox tails at the joints.
Heat the beef drippings in a pot and sauté the onion and half of the ox tail.
Simmer
Add all ingredients to a soup kettle with the water.
Bring to a boil, then add the peppercorns, cloves, salt, mixed herbs, and celery.
Cook slowly for six hours.
Strain and serve
Strain the soup, saving some pieces of meat.
Remove the fat, reheat the soup, and adjust seasoning if necessary.
Add small pieces of meat to each serving and garnish with parsley.
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.
-
Clove + parsleytop 6% of all pairsSmell alikestrongCooked together6,768 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
-
Onion + beeftop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + clovetop 13% of all pairsSmell alikemoderateCooked together16,901 recipes
Shared aroma: 2-nonanone (fruity, floral).
-
Beef + parsleytop 16% of all pairsSmell alikemoderateCooked together5,866 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Ox tails
- Collagen-rich meat and bones that release gelatin, giving the broth body over long simmering.
- Onion
- Sweetness and savory depth once softened and browned in the fat.
- Beef drippings
- Fat for sautéing that carries flavor from the onion and meat into the broth.
- Peppercorns
- Adds a mild, warm pungency that flavors the broth.
- Cloves
- Adds a strong aromatic warmth; a small amount goes a long way.
The step that matters
Cook slowly for six hours. A gentle simmer slowly extracts gelatin and flavor from the bones and meat while keeping the broth clear. A hard, rolling boil emulsifies fat into the liquid and clouds it, so the soup should be kept at a bare simmer.
Swap the clove
How well each one fits the dish's main ingredients (onion, beef, parsley):
- Garlicfits better
- Thymefits better
- Celeryfits better
- Clovethe original
Fit is the average pairing score against onion, beef, parsley. 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.
More ox tail soup recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Roast Beef211 recipes
Beef Loaf175 recipes
Corned Beef87 recipes
Beef Broth67 recipes