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 ↓
Dutch Fried Potatoes
Ingredients
Directions
Fry the chopped onion in pork fat or butter until soft.
Add the sliced raw potatoes, salt, and pepper; fry until golden brown.
Beat the egg lightly and pour it over the potatoes.
Serve immediately in a hot 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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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + porktop 5% of all pairsSmell alikemoderateCooked together2,668 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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Onion + porktop 10% of all pairsSmell alikemoderateCooked together18,214 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).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Raw potatoes
- Form the bulk of the dish and brown in the fat to develop a golden crust.
- Egg
- Binds the potatoes together as it sets over them, adding richness.
- Pork fat or butter
- Conducts heat for frying and carries flavor while browning the potatoes.
- Onion
- Softens in the fat, adding sweetness and aroma to the dish.
The step that matters
Fry the potatoes until golden brown. Frying over sufficient heat lets the potato surface brown through the Maillard reaction, which builds flavor and color. Pale, steamed potatoes lack that depth.
Swap the onion
How well each one fits the dish's main ingredients (potato, pork, pepper, egg):
- Capsicumfits better
- Asparagusfits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against potato, pork, pepper, egg. 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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