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
In a saucepan, bring 2 cups of boiling water to a boil.
Add the celery, onion, and bay leaf; cook for 20 minutes.
Drain the celery mixture, saving the water.
Make the soup
In the same saucepan, melt the butter over medium heat.
Stir in the flour and cook for 1 minute.
Gradually add the reserved water and milk, stirring constantly.
Add the cooked celery mixture, salt, and white pepper.
Simmer for 5 minutes, then serve.
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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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).
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Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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 vegetable flavor and body of the soup.
- Butter
- Adds fat and richness, carrying flavor through the soup.
- Flour
- Thickens the milk and cooking water into a smooth, creamy base.
- Milk
- Adds creaminess and mild sweetness, softening the soup's texture.
The step that matters
Add the reserved water and milk gradually while stirring constantly. Flour clumps if liquid is added all at once. Gradual addition with constant stirring lets starch disperse evenly, so the soup thickens smoothly without lumps.
Swap the white pepper
How well each one fits the dish's main ingredients (celery, milk, butter, flour, onion):
- Parsleyfits better
- Cinnamonfits better
- Thymefits better
- White pepperthe original
Fit is the average pairing score against celery, milk, 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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