Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Mutton-collops
Ingredients
Directions
Prepare
Cut very thin slices from the leg or chump end of the loin of mutton.
Sprinkle the slices with salt, pepper, pounded mace, minced savory herbs, and minced shallot.
Cook and serve
Fry the slices in butter until browned.
Stir in the flour, then add the gravy and lemon juice.
Simmer gently for about 5 to 7 minutes and serve immediately.
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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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Shallot + lemontop 6% of all pairsSmell alikestrongCooked together2,523 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Shallot + flourtop 6% of all pairsSmell alikestrongCooked together2,081 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Pepper + shallottop 11% of all pairsSmell alikemoderateCooked together5,898 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour 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
- Mutton
- Provides the main meat, which is cut thin so it cooks quickly and stays tender.
- Butter
- Fat for frying the slices, adding richness and browning the surface.
- Flour
- Thickens the gravy into a light sauce that coats the meat.
- Shallots
- Add a mild sweet onion-like aroma that flavours the meat and sauce.
- Gravy
- Forms the liquid base of the sauce and moistens the meat as it simmers.
- Lemon juice
- Adds acidity that brightens the rich butter and gravy.
The step that matters
Fry the slices in butter until browned. Thin slices can dry out or turn grey if overcooked; browning in hot butter builds flavour through the Maillard reaction, so they should colour quickly over a sufficiently hot pan before the gravy is added.
Swap the mace
How well each one fits the dish's main ingredients (mutton, pepper, shallot, butter, flour, lemon):
- Parsleyfits better
- Capersfits better
- Thymefits better
- Macethe original
Fit is the average pairing score against mutton, pepper, shallot, butter, flour, lemon. 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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