Why it works: Onion and mushroom are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 10,626 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Beef Tea
Ingredients
Directions
Prepare
Cut the meat into thin slices.
Place the meat in a pot with the cold water.
Cook
Heat over a gentle fire until warm, skimming off any scum.
Simmer gently for 1 hour.
Strain and serve
Strain through a napkin and let it stand for 10 minutes to settle.
Pour off the clear beef tea.
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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Onion + mushroomtop 10% of all pairsSmell alikemoderateCooked together10,626 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Meat + mushroomtop 15% of all pairsSmell alikemoderateCooked together1,423 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Mushroom + ketchuptop 16% of all pairsSmell alikelowCooked together2,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Meat + oniontop 17% of all pairsSmell alikelowCooked together6,364 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + ketchuptop 19% of all pairsSmell alikelowCooked together1,997 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Lean meat
- Releases its flavor and protein into the water during slow simmering, giving the broth body.
- Cold water
- Acts as the solvent, drawing flavor out of the meat gradually as it heats.
The step that matters
Heat gently and skim off the scum. Keeping the heat gentle and removing the scum as it rises prevents coagulated proteins and impurities from clouding the broth. A hard boil would stir them back in, making the broth cloudy and greasy.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (meat, mushroom, ketchup):
- Shallotfits better
- Capsicumfits better
- Tomatofits about as well
- Onionthe original
Fit is the average pairing score against meat, mushroom, ketchup. 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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