Why it works: Turnip and carrot match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 8,002 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
The Stock Boiler
about 2 quartsIngredients
Directions
Prepare
Fill a large stock boiler with 1 gallon of clear cold water.
Add trimmed meat scraps and any bones that can be used.
If available, add a soup bone or chicken for richer stock.
Optionally, add a small onion, turnip, and carrot for flavor.
Simmer the stock
Heat the boiler slowly until it reaches a boil. Skim the surface 2-3 times.
Cover and let simmer for 4-5 hours until you have about 2 quarts of rich stock.
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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Turnip + carrottop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
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Onion + turniptop 5% of all pairsSmell alikestrongCooked together7,585 recipes
Shared aroma: coumarin (sweet, hay).
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Onion + carrottop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Chicken + oniontop 8% of all pairsSmell alikemoderateCooked together17,814 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
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Meat + chickentop 13% of all pairsSmell alikelowCooked together2,449 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Meat scraps
- Release gelatin and savory flavor into the water during long simmering.
- Soup bone or chicken
- Adds body and richness through collagen that dissolves into the broth.
The step that matters
Skim the surface 2-3 times. Skimming removes coagulated proteins and fat that rise as foam while heating, which keeps the stock clear and prevents a greasy, cloudy result.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (meat, chicken, mutton, turnip, carrot):
- Leekfits better
- Potatofits about as well
- Parsnipfits about as well
- Onionthe original
Fit is the average pairing score against meat, chicken, mutton, turnip, carrot. 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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