Why it works: Potato and parsley are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 2,855 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Codfish Balls
Ingredients
Directions
Prepare
Mash the codfish very smooth.
Add the mashed potatoes and one beaten egg, then mix thoroughly.
Form the mixture into small balls about the size of an English walnut.
Coat and fry
Roll each ball in flour, then in egg, and finally in cracker crumbs.
Fry the balls in deep fat until golden brown.
Drain on paper towels, then pile on a platter in a pyramid shape.
Garnish with fried potatoes and parsley, then serve.
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 + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Flour + parsleytop 12% of all pairsSmell alikemoderateCooked together16,675 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Potato + flourtop 15% of all pairsSmell alikemoderateCooked together5,355 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Egg + parsleytop 21% of all pairsSmell alikemoderateCooked together18,765 recipes
Shared aroma: 2,4-decadienal (seaweed).
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
- Cooked codfish
- Provides the main flavour and bulk of the balls.
- Mashed potatoes
- Adds starch and moisture that help the mixture bind and stay tender.
- Eggs
- Bind the mixture together and form a coating that helps the balls hold their shape.
- Flour
- Gives a dry base layer so the egg coating sticks evenly.
- Cracker crumbs
- Form a crisp outer crust that browns when fried.
The step that matters
Frying in deep fat until golden brown. The balls are coated and already cooked, so the fat must be hot enough to brown the crumb crust quickly. If the fat is too cool, the coating absorbs oil, becomes greasy, and the centre may stay soft and fall apart.
Swap the potato
How well each one fits the dish's main ingredients (egg, flour, fried potato, parsley):
- Shallotfits better
- Chivefits better
- Arrowrootfits better
- Potatothe original
Fit is the average pairing score against egg, flour, fried potato, parsley. 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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