Why it works: Carrot and turnip match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 8,002 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Clear Soup
Ingredients
Directions
Prepare the broth
Wash the soup meat well and place it in a large pot with cold water.
Add salt and pepper, then bring to a boil slowly.
Skim the surface as it begins to boil, then add ½ cup cold water and skim again.
When it starts to boil again, stir in another ½ cup water and skim once more.
Simmer and strain
After boiling for 2 hours, add the onion, carrot, and turnip.
Cook for an additional 3 hours, then strain the soup.
Allow to cool, remove the fat, and strain through a napkin to remove sediment.
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.
-
Carrot + turniptop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
-
Pepper + clovetop 5% of all pairsSmell alikestrongCooked together17,451 recipes
Shared aroma: ethyl octanoate (fruity, wine).
-
Clove + carrottop 5% of all pairsSmell alikestrongCooked together5,873 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
-
Onion + turniptop 5% of all pairsSmell alikestrongCooked together7,585 recipes
Shared aroma: coumarin (sweet, hay).
-
Pepper + carrottop 6% of all pairsSmell alikestrongCooked together14,555 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Soup meat
- Releases flavour and gelatin into the water during long simmering, giving the broth body.
- Onion
- Adds savoury sweetness and aroma to the broth as it simmers.
- Carrot
- Adds gentle sweetness and aroma to the broth.
- Turnip
- Adds mild, earthy flavour to the broth.
The step that matters
Skimming the surface as it heats. Proteins and impurities rise to the surface as the water heats and coagulate into grey foam. Removing them early keeps the broth clear and clean-tasting, so skim carefully as it first boils.
Swap the onion
How well each one fits the dish's main ingredients (meat, pepper, clove, carrot, turnip):
- Parsnipfits better
- Leekfits better
- Lettucefits better
- Onionthe original
Fit is the average pairing score against meat, pepper, clove, carrot, turnip. 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.
More clear soup recipes
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
Meat Croquettes52 recipes
Turnip Soup43 recipes
Meatballs37 recipes