Why it works: Onion and carrot are a kitchen classic. They rank in the top 6% of all ingredient pairs, and cooks put them together in 21,601 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Mutton Broth
Ingredients
Directions
Prepare the bones
Trim the scrags of mutton and remove the pith from the bones.
Wipe the bones with a damp cloth.
Break the mutton and shank bones into very small pieces and place them in an enamelled saucepan.
Make the broth
Cover the bones with cold water and add the salt.
Bring to a boil, skimming off any scum.
Add the peppercorns, onion, and carrot if allowed.
Boil steadily for 8 to 9 hours until reduced to 1 quart.
Strain the broth and let it cool until it forms a jelly.
Finish and serve
Heat the broth and add a spoonful of washed rice or pearl barley boiled in stock or milk if desired.
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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Onion + carrottop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Carrot + ricetop 7% of all pairsSmell alikestrongCooked together2,477 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Onion + ricetop 9% of all pairsSmell alikemoderateCooked together10,433 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Mutton + ricetop 16% of all pairsSmell alikemoderateCooked together1,019 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Mutton + carrottop 18% of all pairsSmell alikelowCooked together1,878 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mutton
- Provides the meat flavour and gelatine from bones and connective tissue that lets the broth set into a jelly.
- Shank bones
- Release collagen and marrow flavour into the water during long simmering, adding body and richness.
- Onion
- Adds aromatic sweetness and depth to the broth as it simmers.
- Carrot
- Contributes gentle sweetness and background flavour to the broth.
- Rice or pearl barley
- Adds starch and bulk, thickening the broth and making it more filling.
The step that matters
Boil steadily, not violently. A steady simmer extracts collagen and flavour gradually while keeping the broth clear. A hard boil emulsifies fat and cloudies the liquid, and skimming scum early keeps impurities out of the final jelly.
Swap the onion
How well each one fits the dish's main ingredients (mutton, carrot, rice):
- Turnipfits better
- Leekfits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against mutton, carrot, rice. 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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