Why it works: Parsley and onion are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 25,843 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Mutton Broth
Ingredients
Directions
Make the broth
Place the mutton, salt, and cold water in a saucepan.
Bring slowly to a boil, then remove the scum.
Add the parsley, onion, and washed pearl barley.
Simmer gently for 3 hours.
Finish and serve
Strain the broth and let it cool to remove fat.
Reheat and serve with a small piece of toast.
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.
Photo for illustrative purposes only · Contact us to use it
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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Parsley + oniontop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Parsley + barleytop 10% of all pairsSmell alikestrongCooked together630 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Barley + oniontop 10% of all pairsSmell alikemoderateCooked together1,166 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Mutton + barleytop 14% of all pairsSmell alikemoderateCooked together510 recipes
Shared aroma: ethyl octanoate (fruity).
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Mutton + oniontop 18% of all pairsSmell alikelowCooked together4,531 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
- Knuckle of mutton
- Gives the broth its meaty flavor and body as it simmers.
- Pearl barley
- Releases starch as it simmers, lightly thickening the broth.
- Onion
- Adds savory, aromatic sweetness to the broth.
The step that matters
Removing the scum after the first boil. Scum is coagulated protein and impurities that rise as the liquid heats. Skimming it early keeps the broth clearer and cleaner-tasting.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (mutton, parsley, barley):
- Leekfits better
- Carrotfits better
- Turnipfits better
- Onionthe original
Fit is the average pairing score against mutton, parsley, barley. 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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