Why it works: Potato and pepper are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 8,305 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Codfish Balls
Ingredients
Directions
Prepare
Soak the salt fish in cold water.
In a kettle, combine the potatoes and the soaked fish, then cover with boiling water.
Cook until the potatoes are soft.
Drain the water and mash the fish and potatoes together in the kettle.
Shape and fry
Add pepper, salt if needed, the beaten egg, and butter.
Drop tablespoonfuls of the mixture into a frying basket and plunge into hot fat.
Do not turn them while frying.
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 + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Fish + buttertop 12% of all pairsSmell alikemoderateCooked together4,488 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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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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Potato + fishtop 15% of all pairsSmell alikemoderateCooked together134 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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 mixture and give the balls a soft, fluffy interior when mashed.
- Salt fish
- Provides the main savoury flavour and salty character of the fish balls.
- Egg
- Binds the mashed potato and fish so the mixture holds together when fried.
The step that matters
Do not turn them while frying. The mixture is soft and loosely bound, so turning too early can break the balls apart. Leaving them undisturbed lets a crust set on the outside first, holding their shape.
Swap the potato
How well each one fits the dish's main ingredients (fish, egg, butter, pepper):
- Capsicumfits about as well
- Asparagusfits about as well
- Potatothe original
- Chivefits about as well
Fit is the average pairing score against fish, egg, butter, pepper. 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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