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 shredded codfish for 2-3 hours.
Boil the codfish in water with vinegar for 15 minutes.
Spread the codfish on a sieve to cool.
Make the mixture
Mix the cooled codfish with mashed potato until smooth.
Heat the mixture.
Beat in a frothed egg.
Season the mixture with pepper.
Let the mixture cool completely.
Shape and fry
Form the mixture into balls.
Roll the balls in flour.
Refrigerate the balls to stiffen.
Roll the balls in flour again.
Fry the balls in deep oil 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).
-
Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
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).
-
Pepper + flourtop 19% of all pairsSmell alikemoderateCooked together50,459 recipes
Shared aroma: isobutyraldehyde (malty, green).
Egg and flour barely smell alike, yet cooks put them together in 106,462 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
- Shredded codfish
- Provides the main fish flavor and the bulk of the mixture.
- Mashed potato
- Adds body and moisture, helping the mixture hold together as a binder.
- Egg
- Binds the mixture so the balls keep their shape when cooked.
- Flour
- Dry coating that helps the outside of the balls brown and crisp when fried.
The step that matters
Let the mixture cool completely before shaping. A warm mixture is soft and sticky, so the balls can fall apart. Chilling firms the starches and proteins so they hold their shape in the hot oil.
Swap the potato
How well each one fits the dish's main ingredients (vinegar, egg, pepper, flour):
- Capsicumfits better
- Shallotfits better
- Mustardfits better
- Potatothe original
Fit is the average pairing score against vinegar, egg, 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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