Why it works: Flour and capers match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 1,024 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Leg of Mutton
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the mutton
Place the leg of mutton in a kettle and cover it with boiling water.
Let it boil gently for 1 hour.
Transfer the mutton to a roasting pan and season well with salt, pepper, and ginger.
Dredge the mutton with flour and place it in a hot oven at 400°F (200°C) for 1.5 hours.
Roast and baste
Baste often with the broth it was boiled in until browned.
Make the caper sauce
Mix 1 tablespoon of flour into 2 tablespoons of melted butter.
Add boiling water to the mixture until thickened.
Season the sauce with salt and stir in 2 tablespoons of capers.
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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Flour + caperstop 6% of all pairsSmell alikestrongCooked together1,024 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Pepper + gingertop 9% of all pairsSmell alikestrongCooked together6,800 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Sauce + caperstop 11% of all pairsSmell alikemoderateCooked together678 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Pepper + caperstop 12% of all pairsSmell alikemoderateCooked together2,088 recipes
Shared aroma: coumarin (sweet, hay).
Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Leg of mutton
- Provides the main meat, which becomes tender through gentle boiling before roasting.
- Flour
- Dredging coats the surface, helping it brown in the oven and thickening the sauce.
- Butter
- Melted butter with flour forms the roux that thickens the caper sauce and adds richness.
- Capers
- Add a sharp, briny acidity that cuts through the richness of the mutton and butter.
The step that matters
Baste often with the broth until browned. Regular basting keeps the surface moist while the sugars and proteins on the outside brown, building flavour and colour as the roast cooks.
Swap the ginger
How well each one fits the dish's main ingredients (mutton, pepper, flour, sauce, butter, capers):
- Parsleyfits better
- Tarragonfits better
- Turmericfits better
- Gingerthe original
Fit is the average pairing score against mutton, pepper, flour, sauce, butter, capers. 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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