Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Salt Cod
Ingredients
Directions
Prepare the cod
Soak the picked salt cod overnight.
Remove all bones from the cod.
Make the cakes
Mix the cod with an equal quantity of mashed potatoes, butter, and pepper.
Form the mixture into cakes or balls.
Dust lightly with flour.
Fry until brown.
Alternative method
Alternatively, boil the soaked cod in fresh water for about 30 minutes.
Drain the water.
Stir in sweet milk or cream, beaten egg yolks, butter, and pepper.
Add a sprinkle of flour and stir for a few minutes until well mixed.
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 + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + milktop 9% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
-
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).
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
- Salt cod
- Provides the main flaky, savoury body of the cakes.
- Potatoes
- Starch binds the mixture and gives the cakes a soft, cohesive texture.
- Butter
- Adds fat for richness, moisture and flavour.
- Egg yolks
- Bind the mixture and add richness to the texture.
- Sweet milk or cream
- Adds moisture and softness to the mixture.
The step that matters
Soak the salt cod overnight. Salt cod is heavily salted for preservation, and soaking draws out the excess salt and rehydrates the fish. Skipping or shortening the soak leaves the cakes too salty and the fish firm rather than tender.
Swap the potato
How well each one fits the dish's main ingredients (butter, pepper, flour, milk, egg):
- Capsicumfits about as well
- Potatothe original
- Asparagusfits about as well
- Chivefits about as well
Fit is the average pairing score against butter, pepper, flour, milk, egg. 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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