Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Salt Cod with Egg Sauce
Ingredients
Directions
Prepare the fish
Pick or chop the soaked and boiled salt cod finely.
Make the sauce
Heat the milk in a saucepan.
Thicken the milk with cornflour, then add the mashed potato.
Stir in the butter, beaten eggs, and chopped parsley.
Combine and serve
Add the fish and mix well until heated through.
Pour into a deep dish and 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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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Parsley + potatotop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Milk + potatotop 9% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
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 texture and savory flavor of the dish.
- Eggs
- Set when heated, giving the mixture body and enriching it.
- Mashed potato
- Adds bulk and a soft, smooth texture that holds the fish together.
- Cornflour
- Thickens the warm milk so it becomes a creamy base.
- Butter
- Adds richness and a silky mouthfeel.
The step that matters
Thickening the milk with cornflour. Cornflour must be stirred into warm milk and cooked until it thickens, because starch only swells fully with heat. Adding it to cold liquid or leaving it uncooked leaves a grainy, thin base.
Swap the potato
How well each one fits the dish's main ingredients (milk, flour, egg, butter, parsley, pepper):
- Shallotfits about as well
- Chivefits about as well
- Potatothe original
- Capsicumfits about as well
Fit is the average pairing score against milk, flour, egg, butter, parsley, 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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