Why it works: Carrot and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 8,053 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Cow-heel Soup
Ingredients
Directions
Prepare the broth
Clean and scald the cow-heel, then divide it into 4 parts and place in a stewpan with cold water.
Add a pinch of coarse sea salt, bring to a boil, skim off any foam, and add the onion, carrot, and celery.
Let the mixture simmer gently for about 3 hours or longer.
Finish and serve
Remove some meat from the bones, chop it finely, and return it to the broth.
Stir in the sago or crushed tapioca and boil for another 25 minutes.
Serve hot, adding chopped parsley and lemon juice just 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.
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Carrot + parsleytop 1% of all pairsSmell alikestrongCooked together8,053 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Parsley + lemontop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
Carrot + celerytop 1% of all pairsSmell alikestrongCooked together10,173 recipes
Shared aroma: myristicin (spice, warm).
-
Celery + parsleytop 1% of all pairsSmell alikestrongCooked together6,810 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Sago or crushed tapioca
- Thickens the broth as its starch swells and softens during boiling.
- Cow-heel
- Releases gelatin into the water, giving the soup body and a rich mouthfeel.
- Onion
- Adds aromatic flavour to the broth as it simmers.
The step that matters
Skimming the foam after boiling. Foam rising at the start of boiling carries impurities and scum that can cloud the broth and taint its flavour, so it should be skimmed off before the vegetables are added.
Swap the onion
How well each one fits the dish's main ingredients (carrot, celery, parsley, lemon, pepper, nutmeg):
- Parsnipfits better
- Spinachfits better
- Turnipfits better
- Onionthe original
Fit is the average pairing score against carrot, celery, parsley, lemon, pepper, nutmeg. 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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