Why it works: Onion and beef 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 ↓
Chicken Broth
Ingredients
Directions
Prepare
Scald and clean the heads and feet of the fowls in warm water with a little salt.
Make the broth
Boil the heads and feet in 1 quart of water, adding onion and mace if desired.
For richer broth, add lean beef, knuckle bone of veal, or shanks of mutton.
Simmer until the bones are white and dry, then strain the broth.
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.
Photo for illustrative purposes only · Contact us to use it
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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Onion + beeftop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beef + muttontop 10% of all pairsSmell alikemoderateCooked together2,373 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Beef + vealtop 11% of all pairsSmell alikemoderateCooked together3,784 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
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Veal + muttontop 14% of all pairsSmell alikelowCooked together1,394 recipes
Shared aroma: 1-nonanal (fatty, waxy).
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Onion + macetop 17% of all pairsSmell alikelowCooked together7,078 recipes
Shared aroma: eugenol (clove, spicy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Fowl bones
- Release gelatin and flavor into the water, giving the broth body as they simmer.
- Fowl heads and feet
- Add gelatin-rich collagen, which helps the finished broth set and feel richer.
- Water
- Acts as the cooking liquid that extracts flavor and collagen from the bones.
The step that matters
Simmer until the bones are white and dry, then strain the broth. Simmering gently extracts collagen and flavor without clouding the broth. A hard boil emulsifies fat and fine particles into it, making the broth cloudy and greasy. Straining afterward removes the solids.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (mace, beef, veal, mutton):
- Onionthe original
- Carrotfits about as well
- Potatofits less well
- Leekfits less well
Fit is the average pairing score against mace, beef, veal, mutton. 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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