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
Make the celery base
Cook the chopped celery in boiling water until very soft.
Strain the celery and add the hot liquid back to the pot.
Make the white sauce
In a separate pan, melt the butter and stir in the flour to make a white sauce.
Cook the sauce until it thickens to the consistency of thick cream.
Combine and finish
Combine the sauce with the celery mixture.
Stir in the heated milk, cream, salt, white pepper, and onion juice.
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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Celery + oniontop 7% of all pairsSmell alikemoderateCooked together18,518 recipes
Shared aroma: guaiacol (smoky, sweet).
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Cream + buttertop 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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Milk + flourtop 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
- Softened in water, it supplies the main flavor and body of the soup.
- Butter
- Melted with flour to form the sauce, adding richness and a smooth mouthfeel.
- Flour
- Cooked in melted butter, it thickens the sauce so the soup turns creamy.
- Milk
- Adds liquid and milk proteins that give a soft, creamy texture.
- Cream
- Adds fat that makes the finished soup rich and smooth.
The step that matters
Cook the sauce until it thickens. Flour must cook in the melted butter until the starch swells and thickens the liquid. Stopping too early leaves a raw, pasty taste and a thin texture.
Swap the white pepper
How well each one fits the dish's main ingredients (celery, milk, cream, butter, flour, onion):
- Nutmegfits better
- Parsleyfits better
- Cinnamonfits better
- White pepperthe original
Fit is the average pairing score against celery, milk, cream, butter, flour, 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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