Why it works: Parsley and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,037 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Spanish Mackerel, Broiled
Ingredients
Directions
Prepare the fish
Split the large mackerel down the middle of the back.
If using small mackerels, broil them whole.
Season the fish with pepper and coarse sea salt, then rub with sweet oil.
Cook and serve the fish
Place the fish in a double broiler and cook well on both sides.
Transfer the fish to a hot dish, butter it nicely, and squeeze lemon juice over it.
Garnish with parsley and lemon slices.
Make the sauce
For the sauce, melt butter in a saucepan, then add flour and blend without burning.
Mix well over low heat and add the consommé, lemon juice, and parsley. Let it boil for 15 minutes.
Remove from heat and stir in the well‑beaten egg yolk. Do not add the egg while cooking to prevent curdling.
Serve the sauce with the broiled fish.
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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Parsley + lemontop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + parsleytop 12% of all pairsSmell alikemoderateCooked together16,675 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Forms the main body of the dish, cooked through by broiling to a flaky texture.
- Butter
- Adds richness and fat, and enriches the sauce while coating the fish.
- Flour
- Thickens the sauce when cooked with melted butter into a roux.
- Consommé
- Provides the liquid base of the sauce, adding savory flavor.
- Egg yolk
- Enriches and thickens the sauce, giving it a smooth, creamy body.
The step that matters
Stir in the egg yolk off the heat. Egg yolk thickens by gentle heat, and if it is added during boiling it can scramble and curdle. Removing the pan from the heat first, then stirring in the beaten yolk, keeps the sauce smooth.
“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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