Why it works: Ketchup and sauce match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,099 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Haricot of Mutton
Ingredients
Directions
Prepare and brown
Cut the mutton chops thin from the neck or fore-loin, removing the skin and fat.
Heat the fat in a pan until light brown, then remove the chops.
Fry the sliced onion in the same pan.
Simmer
Pour away the fat and return the chops to the pan with half the grated carrot, pepper, salt, and water.
Cover tightly and simmer slowly for two hours.
Thicken and serve
Thicken the mixture with flour mixed with ketchup and Worcestershire sauce.
Boil for a few minutes and skim off any fat.
Garnish with boiled carrot and turnip cut into shapes.
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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Ketchup + saucetop 1% of all pairsSmell alikestrongCooked together1,099 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Carrot + turniptop 1% of all pairsSmell alikestrongCooked together8,002 recipes
Shared aroma: coumarin (sweet, hay).
-
Turnip + oniontop 5% of all pairsSmell alikestrongCooked together7,585 recipes
Shared aroma: coumarin (sweet, hay).
-
Carrot + peppertop 6% of all pairsSmell alikestrongCooked together14,555 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Carrot + oniontop 6% of all pairsSmell alikemoderateCooked together21,601 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mutton chops
- Main protein; long, slow simmering breaks down connective tissue so the meat becomes tender.
- Flour
- Thickens the cooking liquid as its starch swells and gelatinises when heated.
- Onion
- Frying it softens and sweetens it, adding aroma and depth to the stew.
- Ketchup
- Adds tomato sweetness and acidity, rounding out the savoury sauce.
The step that matters
Thickening with flour. Flour must be fully mixed with the ketchup and Worcestershire sauce before it goes in, otherwise it forms lumps. The mixture then needs to boil for a few minutes so the starch cooks fully, thickening the sauce and removing any raw floury taste.
Swap the onion
How well each one fits the dish's main ingredients (mutton, flour, ketchup, sauce, carrot, turnip, pepper):
- Leekfits better
- Shallotfits better
- Parsnipfits better
- Onionthe original
Fit is the average pairing score against mutton, flour, ketchup, sauce, carrot, turnip, pepper. 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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