Why it works: Onion and potato are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Mutton Soup
Ingredients
Directions
Cook the mutton
Boil the mutton in enough water to cover it well.
As the water cooks away, add boiling water as needed.
Once the mutton is done, remove it from the kettle.
Make the soup
Add the chopped onions, tomatoes, diced potatoes, and cooked barley to the water.
Boil for 1 hour.
Before serving, mix the flour with cold water and add it to the soup.
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 + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + potatotop 5% of all pairsSmell alikestrongCooked together2,798 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + barleytop 5% of all pairsSmell alikestrongCooked together165 recipes
Shared aroma: beta-damascenone (apple, rose).
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Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + barleytop 10% of all pairsSmell alikemoderateCooked together1,166 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
- Mutton
- Provides the main meat and rich flavor in the broth as it simmers.
- Potatoes
- Soften as they cook, adding body and starch to the soup.
- Barley
- Adds chewy texture and thickens the broth as it cooks.
- Flour
- Thickens the soup broth when stirred in before serving.
The step that matters
Mixing the flour with cold water before adding it. Flour added directly to hot liquid clumps, because its starch surface hydrates unevenly. Mixing it into cold water first creates a smooth slurry that thickens the soup evenly.
Swap the tomato
How well each one fits the dish's main ingredients (mutton, onion, potato, barley, flour):
- Leekfits better
- Turnipfits better
- Chivefits better
- Tomatothe original
Fit is the average pairing score against mutton, onion, potato, barley, flour. 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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