Why it works: Butter and capers are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 1,637 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Boiled Leg of Mutton
Ingredients
Directions
Prepare
Wash the leg of mutton clean and trim the shank bone and knuckle.
Place the mutton in a pot and cover it with water.
Boil and rest
Boil gently for 2 to 3 hours, skimming the surface regularly.
Remove from heat and cover the pot to let it steam for 10 to 15 minutes.
If using the broth for soup, add a little salt while boiling; otherwise, salt the meat when partly done.
Serve
Serve with melted butter mixed with capers or nasturtiums.
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.
-
Butter + caperstop 16% of all pairsSmell alikemoderateCooked together1,637 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Mutton + buttertop 16% of all pairsSmell alikemoderateCooked together3,781 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Mutton + caperstop 26% of all pairsSmell alikelowCooked together199 recipes
Shared aroma: octanal (fat, soap).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mutton leg
- Provides the meat that becomes tender through long, gentle simmering.
- Butter
- Adds richness and moisture to the meat when served as a sauce.
- Capers
- Add a sharp, acidic contrast that cuts through the richness of the meat and butter.
The step that matters
Boil gently for 2 to 3 hours, skimming the surface regularly. A rolling boil toughens meat proteins and clouds the broth, while gentle simmering breaks down connective tissue slowly. Skimming removes foam and impurities that would otherwise cook back into the liquid and spoil its clarity and flavour.
Swap the capers
How well each one fits the dish's main ingredients (mutton, butter):
- Pepperfits better
- Parsleyfits about as well
- Capersthe original
- Thymefits about as well
Fit is the average pairing score against mutton, butter. 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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