Why it works: Celery and carrot match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,173 recipes. Both carry myristicin, which smells spice, warm. The science ↓
Scotch Barley Soup
Ingredients
Directions
Make the broth
Cover the meat with cold water in a large pot.
Bring to a boil, skim off the foam, and add the Scotch barley and onions.
Simmer gently for 2 hours, or cook in a covered pot in the oven.
Skim off the fat, then add celery, turnip, carrots, and button onions.
Cook until the meat is tender but not falling apart.
Finish the soup
Remove the meat and keep warm.
Strain 1 quart of broth, then thicken with flour and butter.
Add port wine or ketchup to the sauce and pour over the meat.
For veal, mix broth with milk, thicken with flour and butter, and season with salt, nutmeg, and lemon juice.
Stir in beaten egg yolks and cream before serving.
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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Celery + carrottop 1% of all pairsSmell alikestrongCooked together10,173 recipes
Shared aroma: myristicin (spice, warm).
-
Turnip + carrottop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
-
Barley + turniptop 2% of all pairsSmell alikestrongCooked together629 recipes
Shared aroma: coumarin (sweet, hay).
-
Celery + turniptop 2% of all pairsSmell alikemoderateCooked together4,418 recipes
Shared aroma: coumarin (sweet, hay).
-
Onion + turniptop 5% of all pairsSmell alikestrongCooked together7,585 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
- Scotch barley
- Thickens the broth and adds chewy texture as it softens during simmering.
- Flour
- Thickens the strained broth into a smooth, lightly bodied sauce.
- Egg yolks
- Enrich and thicken the soup slightly when stirred in with cream.
- Cream
- Adds richness and a silky, mellow body to the finished soup.
- Port wine
- Adds depth, sweetness and color to the sauce.
The step that matters
Stir in beaten egg yolks and cream before serving. Egg yolks can curdle or scramble if they overheat. Adding them off the heat, with some hot broth first, keeps the soup smooth and thick.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (meat, barley, celery, turnip, carrot, flour, butter):
- Leekfits better
- Parsnipfits better
- Beetrootfits better
- Onionthe original
Fit is the average pairing score against meat, barley, celery, turnip, carrot, flour, butter. 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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