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
The book gives no oven temperature. The 300°F (150°C) in the steps was added when the recipe was transcribed, as a starting point.
Make the broth
Place the meat in a large pot and cover with cold water.
Bring to a boil, skim off any impurities, and add the Scotch barley and onions.
Simmer gently for 2 hours, or cook in a covered stone pot in the oven at 300°F (150°C).
Skim off the fat, then add celery, turnips, carrots, and button onions if desired.
Finish the soup
Continue cooking until the meat is tender but not falling apart.
Remove the meat and keep warm.
Strain a quart of the broth and use it to thicken 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.
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.
-
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
- Its starch swells and thickens the broth while its chewy grains give the soup body.
- Meat
- Its collagen and juices enrich the broth with savory flavor as it cooks.
- Onions
- They add sweetness and aroma to the broth as they cook down.
- Turnips
- They add mild sweetness and substance that soften during the long simmer.
The step that matters
Skimming the broth after boiling. Impurities and fat that rise to the surface can make the broth cloudy and greasy. Removing them early gives a clearer, cleaner-tasting soup.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (meat, barley, celery, turnip, carrot):
- Leekfits better
- Parsnipfits better
- Lettucefits better
- Onionthe original
Fit is the average pairing score against meat, barley, celery, turnip, carrot. 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Carrot Soup134 recipes
Cream of Celery Soup113 recipes
Meat Croquettes52 recipes
Turnip Soup43 recipes