Why it works: Milk and butter 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
Cook the celery
Cook the celery, cut into small pieces, in boiling water until tender.
Let the water boil away toward the end of cooking.
Make and finish the soup
Make a white sauce by melting the butter, adding the flour, and then slowly adding the milk.
Combine the white sauce with the cooked celery, passing it through a vegetable strainer.
Add the seasonings and serve at once.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Onion + celerytop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
Flour and butter 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
- Milk
- Forms the liquid base of the white sauce, giving the soup its body and creamy character.
- Flour
- Thickens the butter and milk into a white sauce that gives the soup body.
- Butter
- Carries the flour in the white sauce and adds richness.
- Celery
- Provides the main flavour and, once softened and strained, the soup's texture.
The step that matters
Adding the milk to the roux. Adding the milk slowly while stirring lets the flour starch disperse evenly, so the white sauce thickens smoothly without lumps.
Swap the celery
How well each one fits the dish's main ingredients (milk, flour, butter, onion):
- Cinnamonfits better
- Capersfits better
- Garlicfits better
- Celerythe original
Fit is the average pairing score against milk, flour, butter, onion. 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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