Why it works: Onion and potato are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Ragout. Hash. Minced Veal.
Ingredients
Directions
Simmer the meat and potatoes
Place the small pieces of cold meat in a stewpan and cover with water.
Add the minced onion and sliced cold boiled potatoes.
Heat until boiling, then thicken with flour.
Season and finish
Season with pepper, coarse sea salt, and a dash of cayenne pepper if desired.
Mince the onion finely or cook it separately before adding to the stew.
Ensure the meats are heated through but not boiled.
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 + potatotop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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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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Meat + potatotop 14% of all pairsSmell alikemoderateCooked together786 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Potato + flourtop 15% of all pairsSmell alikemoderateCooked together5,355 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cold meats
- Provides the main body and savoury flavour of the hash.
- Cold boiled potatoes
- Softens and adds bulk, thickening the mixture as they break down.
- Flour
- Thickens the cooking liquid into a smooth, sauce-like ragout.
- Onion
- Adds savoury sweetness and aroma as it softens in the liquid.
The step that matters
Heat the meat through without boiling. Prolonged boiling toughens meat proteins and dries them out, leaving them stringy. Gentle heat keeps the meat tender and juicy while it warms through.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (meat, potato, flour, pepper):
- Spinachfits better
- Capsicumfits better
- Okrafits better
- Onionthe original
Fit is the average pairing score against meat, potato, flour, 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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