Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Hashing
Ingredients
Directions
Make the stock
Remove the bones from the meat and marrow, break them, and boil in liquor or water with two onions and a bit of toasted bread.
Simmer for at least 30 minutes, then strain off the fat and scum.
Finish the hash
Cut the meat into thin slices, about the width of a finger and half the length.
Flour and season the meat with pepper and coarse sea salt, adding ketchup and cold gravy if desired.
Stir the meat into the saucepan with the strained liquor, shaking to prevent sticking, and simmer until the gravy thickens.
Serve with toasted bread snippets around the dish.
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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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Flour + ketchuptop 13% of all pairsSmell alikemoderateCooked together2,435 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Meat + breadtop 14% of all pairsSmell alikemoderateCooked together2,924 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Onion + breadtop 15% of all pairsSmell alikemoderateCooked together8,676 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Bread + peppertop 16% of all pairsSmell alikemoderateCooked together20,964 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Flour
- Coats the meat slices and thickens the liquid into a gravy as it simmers.
- Bones
- Release gelatin and flavour into the liquor during long simmering, giving body to the stock.
- Toasted bread
- Adds toasted, savoury flavour to the stock and a crisp garnish at serving.
The step that matters
Stirring the meat into the liquor while simmering. Floured meat can stick and scorch on the base of the pan. Shaking and stirring keep it moving, and the flour thickens the liquid evenly into a gravy.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (meat, bread, flour, pepper, ketchup):
- Shallotfits better
- Capsicumfits better
- Mustardfits better
- Onionthe original
Fit is the average pairing score against meat, bread, flour, pepper, ketchup. 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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