Why it works: Beef and onion are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,092 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
White Soup
Ingredients
Directions
Make the stock
In a separate pot, brown the shin of beef, knuckle of veal (or fowl), and vegetables.
Add water, ham, peppercorns, cloves, and salt; simmer for 8 hours.
Strain the mixture and let it cool.
Remove the fat from the top and clarify the stock.
Make the soup
Melt the butter in a saucepan and stir in the flour.
Slowly add the white stock and cream, stirring continuously.
Season with salt to taste.
Add lemon juice and thinly shaved rind just before serving.
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.
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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Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Beef + vealtop 11% of all pairsSmell alikemoderateCooked together3,784 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Clove + oniontop 13% of all pairsSmell alikemoderateCooked together16,901 recipes
Shared aroma: 2-nonanone (fruity, floral).
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
- Butter
- Enriches the base and carries flavour while the flour is cooked into a roux.
- Flour
- Thickens the soup by forming a roux with the melted butter.
- Cream
- Adds richness and a smooth, velvety texture to the soup.
- Shin of beef
- Releases gelatin and savoury flavour into the long-simmered stock.
The step that matters
Clarifying the stock after straining. Fat left on the surface makes the soup greasy and cloudy. Chilling and skimming the fat off the cooled stock gives a clearer, cleaner base before the soup is finished.
Swap the clove
How well each one fits the dish's main ingredients (butter, flour, cream, beef, veal, ham, onion):
- Capersfits better
- Garlicfits better
- Celeryfits better
- Clovethe original
Fit is the average pairing score against butter, flour, cream, beef, veal, ham, 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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