Why it works: Celery and pepper match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 16,012 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Clear Celery Soup
Ingredients
Directions
Prepare
Chop the onion.
Fry the onion brown in the butter in a saucepan.
Make the soup
Add 4 pints of water, chopped celery, mace, pepper, and salt.
Cook until the celery is soft.
Drain the liquid from the vegetables.
Return the liquid to the saucepan.
Bring to a boil.
Add the vermicelli, sago, or pasta.
Cook until the pasta is soft.
Serve
Serve with toasted wholemeal bread.
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 + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Celery + oniontop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Celery + pastatop 7% of all pairsSmell alikestrongCooked together331 recipes
Shared aroma: nonanal (fat, citrus).
-
Onion + pastatop 8% of all pairsSmell alikestrongCooked together1,961 recipes
Shared aroma: acetic acid (sour, vinegar).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Celery
- Provides the main flavour and body of the soup as it simmers in the water.
- Butter
- Carries the onion's flavour and browns it, adding richness to the base.
- Onion
- Browns in the butter to build a deeper, sweeter savoury base.
- Vermicelli, sago, or pasta
- Softens in the broth and thickens the soup slightly while adding body.
The step that matters
Fry the onion brown in the butter. Browning the onion develops sweet, roasted flavours through the Maillard reaction. Pale onion gives a flatter soup, while over-darkened onion turns bitter.
Swap the mace
How well each one fits the dish's main ingredients (celery, onion, butter, pepper, pasta, bread):
- Parsleyfits better
- Capersfits better
- Garlicfits better
- Macethe original
Fit is the average pairing score against celery, onion, butter, pepper, pasta, 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.
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