Why it works: Carrot and celery 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 ↓
Carrot Soup
Ingredients
Directions
Make the broth
In a large pot, combine the beef hough and water.
Add the carrots, onions, turnip, and celery.
Bring to a boil and simmer for 3 to 4 hours until the carrots are soft.
Remove the meat from the pot.
Finish and serve
Press the vegetables through a sieve back into the soup.
Season with pepper and coarse sea salt.
Boil for a few minutes, skimming off any scum that rises.
Serve hot in a tureen with toasted bread on the side.
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 + celerytop 1% of all pairsSmell alikestrongCooked together10,173 recipes
Shared aroma: myristicin (spice, warm).
-
Carrot + turniptop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
-
Turnip + celerytop 2% of all pairsSmell alikemoderateCooked together4,418 recipes
Shared aroma: coumarin (sweet, hay).
-
Celery + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
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
- Carrots
- Break down during simmering and sieving to give the soup body, sweetness and colour.
- Beef hough
- Releases gelatin and savoury flavour into the water, giving the broth richness and body.
- Onions
- Build savoury depth and aroma as they soften in the simmering liquid.
- Turnip
- Adds mild sweetness and bulk, thickening the soup when pressed through a sieve.
- Celery
- Contributes aromatic, herbal background flavour to the broth.
The step that matters
Skimming off scum while boiling. Foam rising on the surface contains coagulated proteins and impurities that can make the broth cloudy and taste bitter if left in, so it should be removed as it forms.
Swap the onion
How well each one fits the dish's main ingredients (beef, carrot, turnip, celery, pepper, bread):
- Leekfits better
- Parsnipfits better
- Spinachfits about as well
- Onionthe original
Fit is the average pairing score against beef, carrot, turnip, celery, pepper, bread. 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 carrot 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.

Brown Bread461 recipes
Roast Beef211 recipes
Beef Loaf175 recipes
Cream of Celery Soup113 recipes