Why it works: Butter and bread are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓
To Hash Cold Mutton
Ingredients
Directions
Make the broth
Boil the bones with the onion, sweet herbs, mace, whole pepper, coarse sea salt, and toasted crust until there is enough liquid for sauce.
Strain the broth and return it to a saucepan with the butter and flour mixture.
Assemble and serve
Add the mutton to the saucepan and heat until very hot.
Cut the toasted bread into triangles and arrange them around a serving dish.
Pour the hot mutton mixture into the center of the dish and garnish with pickles.
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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Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mutton + breadtop 12% of all pairsSmell alikemoderateCooked together1,488 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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
- Cold mutton
- Provides the meat that is reheated in the sauce to make the hash.
- Butter and flour
- Flour and melted butter thicken the strained broth into a smooth sauce.
- Toasted crust
- Toasting and simmering it adds a browned, roasted flavour to the broth.
- Thin bread
- Toasted brown and cut into triangles, it forms a crisp base around the dish.
The step that matters
Thickening the broth with butter and flour. Flour must be cooked into the butter and hot liquid, or the sauce stays pasty or lumpy. Stirring it into the strained broth while it is hot lets the starch swell evenly and thicken smoothly.
Swap the mace
How well each one fits the dish's main ingredients (mutton, onion, pepper, butter, flour, bread):
- Parsleyfits better
- Garlicfits better
- Turmericfits better
- Macethe original
Fit is the average pairing score against mutton, onion, pepper, butter, flour, bread. 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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