Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Codfish Balls
Ingredients
Directions
Prepare
Soak the codfish in cold water, changing the water as needed to freshen it.
Boil the potatoes until tender and pass them through a ricer.
Mix and shape
In a bowl, mix the riced potatoes with the codfish, butter, and egg.
Season to taste and beat the mixture until light.
Form the mixture into balls, roll them in flour, and fry 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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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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 + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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
- Potatoes
- Provide the bulk and soft, light body of the mixture when riced while hot.
- Codfish
- Supplies the salty, savoury flavour and flaky texture of the fish.
- Butter
- Adds richness and moisture, keeping the mixture tender.
- Egg
- Binds the mixture together so the balls hold their shape.
The step that matters
Beating the mixture until light. Beating incorporates air and works the mixture into a smooth, cohesive texture. Overbeating a potato mixture can make it gluey, while underbeating leaves it dense and loosely bound.
Swap the potato
How well each one fits the dish's main ingredients (butter, egg, flour):
- Chivefits better
- Shallotfits better
- Leekfits better
- Potatothe original
Fit is the average pairing score against butter, egg, 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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