Why it works: Potato and onion 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 ↓
Corn-beef Hash
Ingredients
Directions
Prepare
Chop the corned beef fine, discarding any hard gristle.
Boil the potatoes with their skins on, then chop them not too fine once cooled.
Cook the hash
In a saucepan, melt the butter over medium heat and add a few spoonfuls of boiling water.
When bubbling, add the chopped meat and potatoes, along with salt and pepper.
Heat the mixture, stirring occasionally without mashing the potatoes.
Let it sit for 10 to 15 minutes until a crust forms at the bottom.
Serve
Shape the mixture into a neat loaf.
Loosen it from the pan with a cake turner.
Quickly invert a warm platter over the pan and turn them together to serve.
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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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + tomatotop 5% of all pairsSmell alikestrongCooked together2,798 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beef + oniontop 7% of all pairsSmell alikemoderateCooked together17,092 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + tomatotop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beef + tomatotop 8% of all pairsSmell alikemoderateCooked together5,448 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
- Corned beef
- Provides the main savory meat flavor and the bulk of the hash.
- Potatoes
- Add body and starch that hold the hash together and help it crisp.
- Butter
- Adds richness and helps the bottom brown in the pan.
The step that matters
Letting the mixture sit to form a crust. Resting the hash undisturbed over medium heat lets the bottom brown and set into a crust. Stirring or mashing it during this time breaks the crust and makes the potatoes pasty, so the loaf will not hold its shape.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (beef, potato, meat, butter, egg, pepper, tomato):
- Capsicumfits better
- Asparagusfits about as well
- Onionthe original
- Chivefits about as well
Fit is the average pairing score against beef, potato, meat, butter, egg, pepper, tomato. 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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