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 ↓
Hashed Brown Potatoes
Ingredients
Directions
Prepare and start browning
Peel and chop the boiled potatoes finely.
In a frying pan, heat the butter or drippings over medium heat.
Add the chopped potatoes and minced onion, cooking slowly without stirring.
After a few minutes, check if the potatoes are browning by lifting the edge carefully.
Brown and serve
Once browned, turn the potatoes in large sections, adding more butter if needed.
Season with salt and pepper, turning to brown both sides.
Once browned, move the potatoes to one side of the pan, melt more butter, and turn the potatoes over to coat.
Cook for a few more minutes, then 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).
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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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Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Boiled potatoes
- Provide the bulk and starch that crisp and brown into a golden crust.
- Onion
- Adds sweetness and savory aroma as it cooks into the potatoes.
- Butter or drippings
- Conducts heat and fat for browning and adds rich flavor to the crust.
The step that matters
Leave the potatoes undisturbed until a crust forms. Browning needs direct contact with hot fat and a dry surface. Stirring or turning too early prevents a crust from forming and leaves the potatoes soft and pale.
Swap the onion
How well each one fits the dish's main ingredients (potato, butter, pepper):
- Capsicumfits about as well
- Chivefits about as well
- Onionthe original
- Carrotfits about as well
Fit is the average pairing score against potato, butter, 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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