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
Prepare the celery
Wash the celery and cut it into small pieces.
Cover the celery with boiling water and boil for about 30 minutes, or until tender.
Press the cooked celery through a colander.
Make the soup
In a double boiler, heat the milk with the onion.
Rub the butter and flour together.
Stir the butter-flour mixture into the boiling milk.
Remove the onion and add the strained celery and water, along with the salt and pepper.
Heat thoroughly.
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).
-
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 flavor and, once pressed through, the body of the soup.
- Milk
- Forms the creamy base of the soup and adds richness.
- Butter
- Adds fat and flavor, and helps form the roux with the flour.
- Flour
- Thickens the milk into a smooth, creamy soup when cooked with butter.
The step that matters
Stir the butter-flour mixture into the boiling milk. Flour lumps form if the roux is added to hot liquid without being well blended, so the mixture should be rubbed smooth and stirred in steadily to thicken evenly.
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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