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
Simmer the codfish in a pot on low heat for 1 hour.
Boil the potatoes until tender, then mash them finely.
While the potatoes are hot, mix them thoroughly with the codfish.
Make the mixture
Season the mixture with pepper, coarse sea salt, and butter.
Add the beaten eggs and mix well.
Fry and serve
Drop spoonfuls of the mixture into hot oil to fry until golden brown.
Serve the balls on a napkin placed on a platter to absorb excess grease.
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).
-
Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Pepper + buttertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
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
- Codfish
- Provides the main flavour and the bulk of the savoury body of the balls.
- Potatoes
- Starch that binds the mixture and gives the balls a soft, fluffy interior.
- Eggs
- Bind the mixture together so the balls hold their shape while frying.
- Butter
- Adds fat and richness, softening the mixture and improving flavour.
The step that matters
Drop spoonfuls into hot oil and fry until golden brown. If the oil is not hot enough, the balls absorb grease and turn heavy and soggy instead of crisping. Frying in hot oil seals the outside quickly, and browning adds flavour through the Maillard reaction.
Swap the potato
How well each one fits the dish's main ingredients (pepper, butter, egg):
- Capsicumfits better
- Asparagusfits about as well
- Chivefits about as well
- Potatothe original
Fit is the average pairing score against pepper, butter, egg. 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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