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
Wash the codfish in cold water and break it into small pieces.
Pare the potatoes and cut them into small pieces.
Make the mixture
Cook the fish and potatoes together in boiling water until the potatoes are soft.
Drain and shake over the fire until dry.
Mash the mixture with a potato masher, then add the beaten egg, butter, and pepper.
Add more salt if needed and beat until light.
Fry
Take spoonfuls of the mixture, mold slightly, and slip them into hot fat.
Fry for one minute, or until 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 + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Potato + eggtop 29% of all pairsSmell alikemoderateCooked together4,978 recipes
Shared aroma: (e)-2-octenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Salt codfish
- Provides the main savory flavor and the flaky body of the balls.
- Potatoes
- Adds starch and bulk, helping the mixture hold together and stay soft inside.
- Egg
- Binds the mixture so the balls keep their shape while frying.
- Butter
- Adds richness and moisture to the mashed mixture.
The step that matters
Drain and shake over the fire until dry. Any leftover water makes the mixture loose and soggy, so the balls may fall apart or fry unevenly in the hot fat.
Swap the potato
How well each one fits the dish's main ingredients (egg, butter, pepper):
- Capsicumfits better
- Asparagusfits about as well
- Chivefits about as well
- Potatothe original
Fit is the average pairing score against 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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