Why it works: Mutton and beef are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 2,373 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
A Clear Broth to Keep
Ingredients
Directions
Make the broth
Combine 1 lb of mutton, 1 lb of beef, 1 lb of calf's feet, and 1 lb of eel in a large pot.
Cover with water and bring to a boil.
Reduce heat and simmer for several hours until the meat is tender.
Strain and serve
Strain the broth through a fine sieve and discard the solids.
Season to taste and serve warm.
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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Mutton + beeftop 10% of all pairsSmell alikemoderateCooked together2,373 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mutton
- Contributes meaty flavor and gelatin-rich body to the broth as it simmers.
- Beef
- Adds deep savory flavor and body to the broth during long simmering.
- Calf's feet
- Releases collagen that turns into gelatin, giving the broth a silky, rich body.
- Eel
- Adds richness and savory depth to the broth as it simmers.
The step that matters
Simmering gently. A gentle simmer keeps the broth clear, because a rolling boil emulsifies fat and cloudy particles into the liquid. Long, slow heating also gives collagen time to break down into gelatin.
“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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