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 1-2 hours or overnight.
Chop the soaked codfish finely.
Mix and shape
Mix the chopped codfish with twice as much warm, mashed potatoes.
Add 1 egg, a little butter, pepper, and coarse sea salt to the mixture, then mix all ingredients thoroughly.
Form the mixture into balls.
Roll the balls in a beaten egg or flour for better frying.
Fry
Fry the balls in hot lard until golden 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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Potato + flourtop 15% of all pairsSmell alikemoderateCooked together5,355 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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
- Codfish
- Provides the main salty, savory flavor and the flaky texture of the balls.
- Mashed potatoes
- Bind the fish together and add moisture and body to the mixture.
- Egg
- Binds the mixture so the balls hold their shape while frying.
The step that matters
Soak the codfish thoroughly. Dried salt cod is very salty and firm; soaking draws out excess salt and rehydrates the fish so the balls taste balanced and turn tender rather than tough.
Swap the potato
How well each one fits the dish's main ingredients (egg, butter, pepper, flour):
- Chivefits better
- Shallotfits better
- Asparagusfits better
- Potatothe original
Fit is the average pairing score against egg, butter, pepper, flour. 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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