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 delicately.
Soak the mackerel in cold water before boiling.
Boil
In a pot, bring water to a gentle boil and add salt.
Place the mackerel in the boiling water and simmer.
Skim off any scum that rises to the surface.
Boil for 15 to 20 minutes, watching for the tails to split and eyes to start.
Serve
Serve 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 flesh, which firms and turns opaque as it cooks in water.
- Plain melted butter
- Adds richness and fat that complements the mild flavour of the fish.
The step that matters
Keep the water at a gentle boil. Vigorous boiling agitates the water and can break the delicate fish apart, while a gentle simmer cooks the flesh evenly and keeps it intact.
“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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