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 the codfish
Soak the codfish for one day and night.
Boil the codfish until it falls apart, then pick it into shreds and remove all bones.
Let the fish drain.
Mix and bake
In a bowl, combine the shredded fish, mashed potatoes, pepper, coarse sea salt, sweet milk, and the egg. Mix everything well together.
Form the mixture into rolls and bake until light 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).
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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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Milk + eggtop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
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Pepper + milktop 22% of all pairsSmell alikemoderateCooked together26,984 recipes
Shared aroma: ethyl 2-methylbutyrate (fruity, apple).
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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
- Codfish
- Provides the main savory flavor and the flaky body of the balls.
- Irish potatoes
- Add starch and bulk, giving the mixture a soft, cohesive texture.
- Egg
- Binds the mixture so the balls hold their shape while baking.
- Sweet milk
- Adds moisture, keeping the interior tender rather than dry.
The step that matters
Removing all the bones. Codfish bones are small and easy to miss once the fish is shredded. Checking carefully keeps them out of the mixture so each bite is safe and smooth.
Swap the potato
How well each one fits the dish's main ingredients (pepper, milk, egg):
- Capsicumfits better
- Potatothe original
- Asparagusfits about as well
- Spinachfits about as well
Fit is the average pairing score against pepper, milk, 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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