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 ↓
Genuine Potato Pancakes
Ingredients
Directions
Prepare the batter
Pare and wash the potatoes, then grate them.
Add the eggs, grated onion, salt, and flour to the grated potatoes, mixing thoroughly without pouring off the water.
Fry
Heat the fat in a frying pan until very hot.
Drop spoonfuls of the batter into the hot fat.
Turn the pancakes over repeatedly until they are crisp and brown.
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 + flourtop 15% of all pairsSmell alikemoderateCooked together5,355 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Onion + flourtop 17% of all pairsSmell alikemoderateCooked together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Potato + eggtop 29% of all pairsSmell alikemoderateCooked together4,978 recipes
Shared aroma: (e)-2-octenal (fatty, green).
Egg and flour barely smell alike, yet cooks put them together in 106,462 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Form the main body of the pancake and, once grated, provide starch that crisps when fried.
- Eggs
- Bind the grated potato together so the pancakes hold their shape.
- Onion
- Adds savory flavor to the batter.
- Flour
- Absorbs moisture and helps the batter hold together.
The step that matters
Heat the fat until very hot before adding the batter. Hot fat sears the outside of the batter quickly, forming a crisp crust and limiting oil absorption. Cool fat lets the batter soak up grease and turn soggy and heavy.
Swap the onion
How well each one fits the dish's main ingredients (potato, egg, flour):
- Chivefits better
- Asparagusfits better
- Leekfits better
- Onionthe original
Fit is the average pairing score against potato, egg, flour. 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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