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 just enough to remove the insides.
Wash the mackerel and the roes thoroughly.
Boil
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 skin splits and the eyes start to bulge.
Serve
Serve the mackerel on a napkin 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 body of the dish, cooked gently in salted water until flaky and tender.
- Melted butter
- Adds richness and fat that balances the lean flesh of the fish.
- Fennel or gooseberry sauce
- Adds acidity and aromatic sharpness that cuts through the richness of the fish and butter.
The step that matters
Simmering at a gentle boil. A vigorous boil can break the fish apart and toughen the proteins, so keeping the water at a gentle simmer cooks the flesh evenly and keeps it moist.
“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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