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
Prepare the pot
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.
If using, add 1 burnt onion or 3 tablespoons of coloring.
Simmer and serve
Set the pot on the fire and skim off any scum that forms.
Reduce heat and simmer for 4 hours, adding a drop of cold water occasionally to keep the broth clear.
Serve sliced bread in a tureen, pour the broth and vegetables over it, and serve the meat and remaining vegetables 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 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
- Slow simmering breaks down connective tissue, enriching the broth with body and savory flavor.
- Onions
- Contribute sweetness and aromatic depth to the broth as they cook down.
- Leeks
- Add a mild, sweet onion-like flavor to the broth.
- Carrots
- Release natural sweetness into the broth during the long simmer.
- Turnips
- Add a subtly sweet, earthy flavor to the broth and vegetables.
The step that matters
Skimming scum and keeping the simmer gentle. Scum is coagulated proteins and impurities that cloud the broth if left to mix in. Skimming early and simmering gently rather than boiling keeps the broth clear and clean-tasting over the long cooking time.
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, liver):
- Parsnipfits better
- Shallotfits better
- Chivefits better
- Onionthe original
Fit is the average pairing score against beef, pepper, leek, carrot, turnip, clove, liver. 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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