Why it works: Beef and onion 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 ↓
Gravy Made From Bones
Ingredients
Directions
Prepare
Break bones into small pieces.
Make the broth
Boil bones in 2 quarts of water.
After boiling, let it simmer for nearly 3 hours.
Add onions, sweet herbs, salt, and pepper.
Strain the mixture and keep for making gravy or sauces.
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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Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beef + peppertop 10% of all pairsSmell alikemoderateCooked together18,971 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Beef, mutton, or veal bones
- Release gelatin and flavour into the water as they simmer, giving the broth body.
- Onions
- Add savoury sweetness and aroma to the broth as they cook.
- Sweet herbs
- Contribute aromatic flavour to the broth during simmering.
The step that matters
Simmer gently for nearly 3 hours. Keeping the liquid at a gentle simmer extracts flavour and gelatin from the bones without clouding the broth. A hard rolling boil emulsifies fat and cloudy particles into the liquid, so the broth turns murky and greasy.
Swap the onion
How well each one fits the dish's main ingredients (beef, pepper):
- Capsicumfits better
- Tomatofits better
- Carrotfits about as well
- Onionthe original
Fit is the average pairing score against beef, pepper. 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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