Why it works: Leek and turnip match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,046 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Scotch Broth
Ingredients
Directions
Prepare the broth
Trim the neck of mutton for cutlets.
Remove eight chops and set aside.
Place the remaining neck in a three-quart saucepan with 2 quarts of cold water, a little pepper, salt, and 1 onion studded with 2 cloves. Bring to a boil and skim.
Add ½ cup of diced carrots, turnips, leeks, and onions.
Simmer for 3 hours.
Cook the barley and chops
Blanch ½ cup of Scotch barley. Cook it in water with a little butter and salt.
In another pan, cook the reserved chops in some of the broth until done.
Assemble and serve
Drain the barley and place it in a tureen with the chops.
Remove the neck of mutton.
Pour the broth over it. Add the chopped parsley.
Serve.
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.
-
Leek + turniptop 1% of all pairsSmell alikestrongCooked together1,046 recipes
Shared aroma: coumarin (sweet, hay).
-
Leek + barleytop 1% of all pairsSmell alikestrongCooked together142 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
-
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).
-
Leek + carrottop 3% of all pairsSmell alikestrongCooked together1,310 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
- Neck of mutton
- Gives the broth its rich meaty flavour as it simmers for hours.
- Scotch barley
- Thickens the broth and adds a chewy, starchy body.
- Leeks
- Add a mild onion sweetness that rounds out the broth.
- Turnips
- Contribute earthy sweetness and soften into the broth during simmering.
- Carrots
- Add natural sweetness and colour to the broth.
The step that matters
Skim the broth after it comes to a boil. Foam and fat rising at the start would cloud the broth and taste greasy, so removing them early keeps it clear and clean-flavoured over the long simmer.
Swap the onion
How well each one fits the dish's main ingredients (mutton, leek, barley, turnip, carrot, pepper, butter):
- Parsnipfits better
- Asparagusfits better
- Shallotfits better
- Onionthe original
Fit is the average pairing score against mutton, leek, barley, turnip, carrot, pepper, 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.
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.

Mutton Broth292 recipes
Carrot Soup134 recipes
Haricot Mutton59 recipes
Mutton Soup56 recipes