Why it works: Fennel and butter work together. They rank in the top 27% of all ingredient pairs, and cooks put them together in 647 recipes. Both carry anethole, which smells sweet, anise. The science ↓
To Boil Mackerel
Ingredients
Directions
Prepare
Clean the mackerel by opening it and removing the insides carefully.
Wash the mackerel and the roes gently in cold water.
Boil and serve
Fill a pot with cold water and add a generous amount of coarse sea salt.
Bring the water to a gentle boil, then add the mackerel.
Simmer for 15 to 20 minutes, skimming off any scum that rises.
Check for doneness by ensuring the tails split and the eyes start to pop.
Remove the mackerel from the pot and place it on a serving dish.
Serve with fennel or gooseberry sauce and melted butter.
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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Fennel + buttertop 27% of all pairsSmell alikemoderateCooked together647 recipes
Shared aroma: anethole (sweet, anise).
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 that cooks gently in the salted water until it turns opaque and flaky.
- Coarse sea salt
- Seasons the poaching water so the fish is flavoured from the outside as it cooks.
- Melted butter
- Adds richness and a smooth fat that complements the mild, oily fish when served.
The step that matters
Simmer gently and skim the scum. A gentle simmer cooks the fish evenly without breaking its flesh apart, while skimming removes coagulated proteins that would cloud the broth and muddy the flavour.
“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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