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 ↓
Receipt for Codfish Balls
Ingredients
Directions
Prepare the fish
Soak the codfish in cold water.
Cut the fish into small pieces.
Cook and mash
Cook the fish and potatoes in boiling water until the potatoes are soft, then strain.
Mash the mixture carefully and add the butter and beaten egg.
Form and fry
Use a spoon to form balls and drop them in deep fat for 1 minute.
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 + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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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
- Salt codfish
- Provides the main savory flavor and fish texture that defines the balls.
- Potatoes
- Supply starch and bulk, giving the mixture body so it holds its shape.
- Egg
- Binds the mixture together as it sets, helping the balls hold together.
- Butter
- Adds fat for richness and a softer, more tender interior.
The step that matters
Mash the mixture carefully and add the butter and beaten egg. The mixture must be well drained and evenly mashed before shaping. Excess moisture turns to steam in hot fat and can break the balls apart, while the egg sets as it heats and holds them together.
Swap the potato
How well each one fits the dish's main ingredients (egg, butter, pepper):
- Capsicumfits better
- Asparagusfits about as well
- Chivefits about as well
- Potatothe original
Fit is the average pairing score against egg, butter, pepper. 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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