Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Corned-beef Hash
Ingredients
Directions
Prepare
Chop the potato and beef separately into fine pieces, seasoning each with salt and pepper.
Mix the beef and potatoes together lightly.
Cook
Heat the milk with half of the butter in a frying pan until warm.
Add the hash to the pan and spread it evenly.
Place the remaining butter on top in pieces.
Cover the pan and cook slowly for 30 minutes without stirring.
Once a rich, thick crust forms on the bottom, fold the hash like an omelette and transfer it to a warm platter.
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 + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Beef + potatotop 8% of all pairsSmell alikemoderateCooked together2,052 recipes
Shared aroma: sotolon (curry, maple).
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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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Potato + milktop 9% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
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Beef + peppertop 10% of all pairsSmell alikemoderateCooked together18,971 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
- Beef
- Provides the main savory, meaty flavor and protein bulk of the hash.
- Potato
- Adds starch and body, helping the hash bind and form a crisp, browned crust.
- Butter
- Adds richness and helps the bottom of the hash brown in the pan.
- Milk
- Adds moisture and softness to the potato and beef mixture as it cooks.
The step that matters
Cook slowly without stirring. Leaving the hash undisturbed lets a browned crust form on the bottom through the Maillard reaction. Stirring breaks up the crust and keeps the hash pale and soft.
“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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