Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Cream of Celery Soup
Ingredients
Directions
Prepare the celery
Parboil the celery in hot water for 15 minutes, then drain.
Add the celery to the white stock and cook until very soft.
Rub the mixture through a sieve.
Make the soup
Scald the onion in the milk, then remove the onion.
Add the milk to the stock.
Cream the flour and butter together, then add to the stock.
Finally, add the cream and season with salt and pepper.
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.
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Celery + oniontop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
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, once softened and sieved, the body of the soup.
- Butter
- Adds richness and fat, carrying flavour and smoothing the texture.
- Flour
- Thickens the soup, giving it a smooth, creamy body when cooked with the butter.
- Milk
- Adds creaminess and mild sweetness, softening the soup's savoury taste.
- Cream
- Adds richness and a silky mouthfeel to the finished soup.
The step that matters
Creaming the flour and butter into the stock. If the flour is added without being blended smoothly with the butter, it can form lumps instead of thickening the soup evenly. Blending the two first helps the starch disperse evenly as the liquid heats.
Swap the white pepper
How well each one fits the dish's main ingredients (celery, onion, butter, flour, milk, cream):
- Nutmegfits better
- Parsleyfits better
- Cinnamonfits better
- White pepperthe original
Fit is the average pairing score against celery, onion, butter, flour, milk, cream. 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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