Why it works: Leek and white pepper work together. They rank in the top 17% of all ingredient pairs, and 57 recipes mention both. Both carry 2-methylbutyraldehyde, which smells malty, chocolate. The science ↓
The recipe
Ingredients
Directions
Make the stock
Combine beef and water in an iron pot and simmer for 4 hours, skimming frequently.
Remove the beef and strain the stock.
Prepare the leeks
Wash and trim the leeks, cut the white part into 1‑inch lengths, and soak them in cold water.
Boil the green part of the leeks in the beef stock until pulpy, then strain through a fine sieve.
Cook and serve
Truss the fowl and place it in a stewpan with the white leeks and stock.
Add salt and white pepper, bring to a boil, then simmer gently for 1 hour.
Serve in a tureen, or reserve a cup of soup to pour over the fowl if served separately.
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 aroma chemistry they share, and how many recipes mention both.
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Leek + white peppertop 17% of all pairsAroma overlaplowMentioned together57 recipes
Shared aroma: 2-methylbutyraldehyde (malty, chocolate).
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Beef + leektop 6% of all pairsAroma overlapmoderateMentioned together659 recipes
Shared aroma: ethyl butyrate (apple, fruity).
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Beef + white peppertop 17% of all pairsAroma overlaplowMentioned together616 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Lean beef
- Gives the stock its rich, meaty flavour as it simmers for hours.
- Leeks
- Their green parts break down to thicken and flavour the soup, while the white parts stay in pieces.
- Fine young fowl
- Provides tender meat that cooks gently in the stock and flavours the soup.
The step that matters
Simmer gently after the boil. Once the fowl is added and the soup boils, a gentle simmer keeps the meat tender and the broth clear; a hard boil toughens the protein and clouds the stock.
Flavor stand-ins for the white pepper
How well each one fits the dish's main ingredients (beef, leek):
- Celerybetter flavor fit
- Thymebetter flavor fit
- Garlicbetter flavor fit
- White pepperthe original
Fit is the average pairing score against beef, leek. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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