Why it works: Leek and barley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 142 recipes. Both carry 1-octen-3-ol, which smells mushroom, earthy. The science ↓
Thick Beef Soup
Ingredients
Directions
Make the broth
In a large pot, boil 8 quarts of water gently.
Add 8 to 10 pounds of shin or leg of beef and a bunch of sweet herbs.
Skim the surface regularly and simmer for 7 hours.
Strain the broth and let it cool overnight.
Finish the soup
Remove the fat and discard gristly and sinewy parts from the bones.
Add the meat back to the soup along with leeks, onions, celery, pepper, and salt.
Stir in 10 to 12 ounces of parboiled Scotch barley.
Boil gently for 2 to 3 hours.
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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Leek + barleytop 1% of all pairsSmell alikestrongCooked together142 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Leek + celerytop 4% of all pairsSmell alikestrongCooked together1,093 recipes
Shared aroma: coumarin (sweet, hay).
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Leek + oniontop 4% of all pairsSmell alikestrongCooked together1,326 recipes
Shared aroma: ethyl butyrate (apple, fruity).
-
Celery + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Celery + barleytop 6% of all pairsSmell alikemoderateCooked together571 recipes
Shared aroma: 2-methoxy-4-vinylphenol (clove, smoky).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Beef shin or leg
- Gives the broth its rich meaty flavour and body as it simmers for hours.
- Scotch barley
- Swells as it cooks, thickening the soup and adding a chewy texture.
- Leeks
- Add a mild sweetness and aromatic flavour to the finished soup.
- Onions
- Add sweetness and savoury depth as they soften into the broth.
- Celery
- Adds a fresh, aromatic background flavour to the soup.
The step that matters
Skimming the surface while simmering. Skimming removes foam and impurities that would cloud the broth and taste bitter. Removing fat after chilling keeps the soup clean-flavoured and less greasy.
Swap the onion
How well each one fits the dish's main ingredients (beef, leek, celery, pepper, barley):
- Turnipfits better
- Carrotfits better
- Parsnipfits better
- Onionthe original
Fit is the average pairing score against beef, leek, celery, pepper, 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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