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 Fritters
Ingredients
Directions
Prepare
Mash the cold potatoes in a bowl.
Mix in the chopped onion, pepper, and coarse sea salt to taste.
Shape the mixture into small cakes.
Brush the cakes with beaten egg.
Cook and serve
Fry the cakes in butter until golden brown.
Serve with brown sauce.
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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Butter + saucetop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Butter and sauce barely smell alike, yet cooks put them together in 15,338 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
- Cold potatoes
- Form the bulk of the fritters and give them a soft, starchy interior.
- Egg
- Binds the mixture and, brushed on the outside, helps the cakes brown.
- Butter
- Fat for frying that adds richness and promotes golden browning on the surface.
- Chopped onion
- Adds moisture and a savoury, aromatic flavour to the mixture.
The step that matters
Fry the cakes in butter until golden brown. Butter contains milk solids that can burn before the cakes are cooked through. Medium heat and watching the colour keep the browning even without bitterness, and the shaped cakes need to be firm enough to hold together in the pan.
Swap the onion
How well each one fits the dish's main ingredients (potato, pepper, egg, butter, sauce):
- Capsicumfits better
- Chivefits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against potato, pepper, egg, butter, sauce. 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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