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 ↓
Chicken Soup
Ingredients
Directions
Prepare the soup
Finely chop the vegetables: carrot, onion, and celery.
In a pot, cook the chopped vegetables in 3 tablespoons of butter for 3 minutes.
Add the chicken stock and bread crumbs, then boil for 10 minutes and strain the mixture.
Thicken and season
Return the strained liquid to the pot, add the milk, and thicken with the remaining butter and flour cooked together.
Season with salt and pepper to taste.
For a richer soup, substitute 1 cup of cream for 1 cup of milk.
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).
-
Pepper + celerytop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Carrot + peppertop 6% of all pairsSmell alikestrongCooked together14,555 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Carrot + oniontop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Chicken stock
- Forms the liquid base of the soup and carries the flavor of the vegetables.
- Butter
- Adds richness and fat, and cooks the vegetables gently before the soup is built.
- Flour
- Thickens the soup when cooked with butter, giving it a smoother body.
- Milk
- Adds creaminess and mild sweetness, softening the savory broth.
- Bread crumbs
- Boiled into the stock, they help thicken and give the soup body.
The step that matters
Thickening the soup with butter and flour. Cooking the butter and flour together forms a roux, which thickens the liquid evenly. Adding it raw or in clumps can leave lumps or a pasty taste.
Swap the onion
How well each one fits the dish's main ingredients (chicken, flour, butter, bread, carrot, pepper, celery):
- Leekfits better
- Capsicumfits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against chicken, flour, butter, bread, carrot, pepper, celery. 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 chicken 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
Chicken Broth257 recipes
Carrot Soup134 recipes
Cream of Celery Soup113 recipes