Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Baked Mackerel, or Whitings
Ingredients
Directions
The book says “a gentle oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 350°F (175°C).
Wash and dry the fish, then wrap them in a soft cloth for a while.
Replace the roes in the fish and place them in a baking dish.
Season and bake
Mix the butter with the flour and spread it over the fish.
Add wine, chili vinegar, salt, and cayenne to the dish.
Arrange the fish with heads and tails towards each other, backs down.
Cover with buttered paper and bake for 20 minutes.
Remove the paper and serve the fish in the sauce.
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Wine + vinegartop 12% of all pairsSmell alikemoderateCooked together3,493 recipes
Shared aroma: sotolon (curry, maple).
-
Wine + buttertop 13% of all pairsSmell alikemoderateCooked together8,645 recipes
Shared aroma: 2-furfurylthiol (coffee, roasted).
-
Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Whiting + flourtop 18% of all pairsSmell alikemoderateCooked together303 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mackerel or whitings
- Forms the main body of the dish, cooking through in the oven to become tender and flaky.
- Butter
- Adds richness and moisture, coating the fish so it stays juicy as it bakes.
- All-purpose flour
- Mixed with the butter, it thickens the juices in the dish into a light sauce.
- Wine
- Adds moisture and acidity to the liquid that forms the sauce around the fish.
The step that matters
Covering with buttered paper before baking. The paper traps steam so the fish cooks gently in its own moisture and sauce, staying moist rather than drying out at the surface.
“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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