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.
Soak them in vinegar and water for a short time.
Boil
Place the mackerel in a fish kettle with cold water and a handful of coarse sea salt.
Boil slowly for about 20 minutes, or until the eye starts to bulge and the tail splits.
Remove the mackerel immediately once cooked to prevent breaking.
Serve
Serve with parsley sauce and garnish with minced parsley.
Serve mustard on the side.
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).
-
Sauce + mustardtop 13% of all pairsSmell alikemoderateCooked together2,120 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Vinegar + parsleytop 16% of all pairsSmell alikemoderateCooked together6,477 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Parsley + saucetop 23% of all pairsSmell alikelowCooked together6,693 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mackerel
- Provides the main flesh, which firms and flakes as it cooks in the gentle simmer.
- Vinegar
- Adds acidity that brightens the flavour of the oily fish.
The step that matters
Remove the mackerel immediately once cooked. Fish protein keeps firming and then breaks apart if it stays in hot liquid after it is cooked, so lifting it out promptly keeps the fish whole.
Swap the parsley
How well each one fits the dish's main ingredients (vinegar, sauce, mustard):
- Capersfits better
- Tarragonfits better
- Dillfits better
- Parsleythe original
Fit is the average pairing score against vinegar, sauce, 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.
More boiled mackerel recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Tomato Soup526 recipes
Brown Bread461 recipes
Mutton Broth292 recipes
Yorkshire Pudding264 recipes