Why it works: Parsley and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,037 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Boiled Salt Mackerel
Ingredients
Directions
Prepare the mackerel
Wash and clean the mackerel to remove all brine and salt.
Soak the mackerel meat side down in cold water overnight.
In the morning, rinse the mackerel in 1 or 2 waters.
Cook the fish
Wrap the mackerel in a cloth and place it in a kettle with cold water.
Cook for about 30 minutes.
Carefully remove the mackerel from the cloth and take out the back bones.
Pour melted butter and cream over the fish, and sprinkle with pepper.
Make the cream sauce
For the cream sauce, heat the milk until scalding.
Stir in the cornstarch mixed with a little water until thickened.
Add butter, pepper, salt, and chopped parsley to taste.
Beat the egg lightly and gradually pour the sauce over it.
Return the mixture to the heat and stir for 1 minute.
Serve
Pour the sauce over the fish and serve with lemon slices or parsley/watercress as garnish.
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 + lemontop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Milk + lemontop 15% of all pairsSmell alikemoderateCooked together19,053 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Salt mackerel
- Provides the main fish flesh, which soaking and rinsing make mild enough to eat.
- Milk
- Forms the base of the cream sauce, giving it its body and richness.
- Cornstarch
- Thickens the milk into a smooth sauce when heated.
- Egg
- Enriches the sauce and adds body and a silkier texture when stirred in.
- Butter
- Adds fat and rich flavour to the fish and the sauce.
The step that matters
Return the mixture to the heat and stir for 1 minute. Egg thickens by gentle heat, so the sauce must be kept warm and stirred to avoid scrambling. Once the egg is added, overheating can curdle it and leave the sauce grainy.
“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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