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 ↓
German Potato Pancakes
Ingredients
Directions
Prepare the batter
Grate the potatoes and onion finely.
In a bowl, combine the grated potatoes and onion with the eggs, sugar, flour, and salt. Mix until well combined.
Cook and serve
Heat a skillet over medium heat and add oil.
Spoon the mixture into the skillet and flatten into pancakes. Cook until golden brown on both sides.
Serve hot.
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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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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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).
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 bulk of the pancake and give it a starchy, tender interior.
- Eggs
- Bind the grated potato together so the pancakes hold their shape.
- Flour
- Absorbs excess moisture from the potato and helps the pancakes hold together.
- Onion
- Adds savory aroma and flavor to the batter.
The step that matters
Spoon the mixture into the skillet and flatten into pancakes. Grated potato releases water and starts to darken quickly, so the batter should be cooked promptly in hot oil. Enough oil and steady medium heat help the pancakes brown evenly and crisp rather than steam or burn.
Swap the onion
How well each one fits the dish's main ingredients (potato, egg, sugar, flour):
- Chivefits better
- Arrowrootfits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against potato, egg, sugar, 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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