Why it works: Leek and turnip match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,046 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
French Pot Au Feu
Ingredients
Directions
Make the broth
In a large pot, combine 1 gallon of water and 4 pounds of beef.
Add 3 teaspoons of coarse sea salt, 1 teaspoon of black pepper, 4 onions, 4 leeks, 2 carrots, 2 turnips, and 3 cloves.
Set the pot on the stove and bring to a boil. Skim off any scum that forms.
Reduce heat and simmer for 4 hours, adding a little cold water occasionally to keep the broth clear.
Serve
Slice bread and place it in a tureen. Pour the broth over the bread, adding some vegetables.
Serve the meat separately with the remaining vegetables on the side.
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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Leek + turniptop 1% of all pairsSmell alikestrongCooked together1,046 recipes
Shared aroma: coumarin (sweet, hay).
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Carrot + turniptop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
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Leek + carrottop 3% of all pairsSmell alikestrongCooked together1,310 recipes
Shared aroma: coumarin (sweet, hay).
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Onion + leektop 4% of all pairsSmell alikestrongCooked together1,326 recipes
Shared aroma: ethyl butyrate (apple, fruity).
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Pepper + clovetop 5% of all pairsSmell alikestrongCooked together17,451 recipes
Shared aroma: ethyl octanoate (fruity, wine).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Beef
- Releases flavour and gelatin into the broth as it simmers slowly, while the meat itself stays tender.
- Onions
- Add sweetness and savoury depth to the broth as they cook down.
- Leeks
- Contribute a mild, sweet onion flavour to the broth.
- Carrots
- Add natural sweetness and colour to the broth.
- Turnips
- Add mild sweetness and earthy flavour to the broth.
- Bread
- Soaks up the hot broth, giving a soft texture when served in the tureen.
The step that matters
Skimming and simmering gently. Boiling hard breaks up the scum and fat into the liquid, making the broth cloudy. Keeping it at a gentle simmer and skimming early lets proteins and impurities rise and be removed, so the broth stays clear.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (beef, pepper, leek, carrot, turnip, clove, bread):
- Parsnipfits better
- Shallotfits better
- Lettucefits better
- Onionthe original
Fit is the average pairing score against beef, pepper, leek, carrot, turnip, clove, bread. 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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