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 ↓
Potato Griddle-cakes
Ingredients
Directions
Prepare the potatoes
Peel, wash, and grate the potatoes into a bowl of cold water to keep them white.
Strain off the water and pour the boiling milk over the grated potatoes.
Make the batter
Stir in the eggs, salt, and flour mixed with baking powder.
If desired, add a little finely chopped onion for flavor.
Fry and serve
Fry the mixture in a hot skillet with lard or butter until golden brown.
Serve with stewed or preserved fruit, especially huckleberries.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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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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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
Flour and butter barely smell alike, yet cooks put them together in 124,287 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
- Provide the starchy bulk that gives the griddle cakes their body.
- Flour
- Adds structure by binding the grated potato into a cohesive batter.
- Baking powder
- Releases gas in the batter, helping the cakes rise and turn light.
- Eggs
- Bind the batter and help set the cakes as they cook.
- Milk
- Adds moisture and softens the potato starch for a tender interior.
The step that matters
Fry in a hot skillet until golden brown. A hot pan sets the outside quickly and browns it through the Maillard reaction, while a cool pan lets the batter soak up fat and turn greasy and pale.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (potato, flour, egg, milk, butter):
- Chivefits better
- Asparagusfits better
- Leekfits better
- Onionthe original
Fit is the average pairing score against potato, flour, egg, milk, butter. 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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