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 ↓
Bone Soup
Ingredients
Directions
Prepare the broth
Chop the beef bones into small pieces and place them in a large stewpan.
Cover the bones with cold water and add 1 teaspoon of coarse sea salt.
Bring to a boil, skimming the surface as needed, and let it reduce until about 1 pint remains.
Strain the broth into a basin and let it cool for 1-2 hours to remove the fat.
Cook the vegetables
In a separate enamel saucepan, boil the chopped onions, carrot, cabbage, celery, turnip, parsley, and French beans in salted water until just tender.
Drain the vegetables and set aside to cool.
Combine and clarify
Remove the fat from the cooled broth, add the vegetables back to the broth, and bring to a boil.
Add the eggshell to help clarify the soup and strain it through muslin.
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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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).
-
Celery + parsleytop 1% of all pairsSmell alikestrongCooked together6,810 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Cabbage + turniptop 2% of all pairsSmell alikestrongCooked together897 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
- Beef bones
- Release gelatin and flavour into the broth as they simmer, giving body and richness.
- Onions
- Add sweetness and savoury depth to the broth as they cook.
- Carrot
- Adds natural sweetness and colour to the soup.
- Eggshell
- Its particles bind fine sediment so it can be strained out, clarifying the broth.
The step that matters
Skimming and removing the fat. Skimming foam as the broth comes to a boil and chilling it to lift off the fat keeps the soup clear and clean-tasting. Fat and scum left in will cloud the broth and make it greasy.
Swap the cabbage
How well each one fits the dish's main ingredients (beef, onion, carrot, celery, turnip, parsley, beans):
- Leekfits better
- Parsnipfits better
- Okrafits better
- Cabbagethe original
Fit is the average pairing score against beef, onion, carrot, celery, turnip, parsley, beans. 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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