Why it works: Vinegar and mustard are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 14,067 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Boiled Mackerel
Ingredients
Directions
Prepare
Clean the mackerel well and soak them in vinegar and water for a short time.
Boil
Place the mackerel in a fish kettle with cold water and add the salt.
Boil slowly; small mackerel will cook in about 20 minutes.
They are done when the eye starts to bulge and the tail splits.
Remove them immediately to prevent breaking.
Serve
Serve with parsley sauce and garnish with minced parsley.
Accompany with mustard.
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.
-
Vinegar + mustardtop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Parsley + mustardtop 8% of all pairsSmell alikestrongCooked together2,588 recipes
Shared aroma: trans-2-hexenal (green, leafy).
-
Vinegar + parsleytop 16% of all pairsSmell alikemoderateCooked together6,477 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mackerel
- Is the main protein, cooked gently in simmering water until it turns opaque and flakes.
- Vinegar
- Its acidity helps firm the fish's surface and gives a clean, sharp flavour.
- Coarse sea salt
- Seasons the cooking water so the fish is lightly flavoured as it cooks.
The step that matters
Remove them immediately to prevent breaking. Mackerel flesh is delicate and becomes soft and fragile once overcooked. Lifting the fish out as soon as it is done keeps it intact and moist.
Swap the parsley
How well each one fits the dish's main ingredients (vinegar, mustard):
- Tarragonfits better
- Capersfits better
- Dillfits better
- Parsleythe original
Fit is the average pairing score against vinegar, mustard. 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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