Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Baked Mackerel
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Poach the fish
Place the mackerel in an enamelled stewpan with cider, minced onion, nutmeg, parsley, pepper, and salt.
Cover and cook gently for 30 minutes.
Make the sauce
Add white stock, egg yolk, flour, and butter.
Heat until hot.
Bake and serve
Carefully remove the fish and place it in a baking dish.
Strain the sauce and pour it over the fish.
Sprinkle with bread crumbs and bake at 400°F (200°C) until lightly browned.
Serve in the baking dish.
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.
-
Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Nutmeg + parsleytop 3% of all pairsSmell alikestrongCooked together5,062 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Nutmeg + peppertop 7% of all pairsSmell alikestrongCooked together13,015 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Nutmeg + flourtop 8% of all pairsSmell alikemoderateCooked together18,623 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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 and becomes flaky and tender when gently cooked.
- Egg yolk
- Thickens the sauce as it heats and gives it a rich, smooth body.
- Flour
- Thickens the stock and butter mixture so the sauce clings to the fish.
- Butter
- Adds fat and richness to the sauce and helps it taste smooth.
- White stock
- Forms the liquid base of the sauce, adding savory depth.
- Bread crumbs
- Form a crisp, lightly browned topping in the oven.
The step that matters
Heating the sauce after adding the egg yolk. Egg yolk thickens when heated, but if the sauce gets too hot or boils, the yolk can scramble and turn grainy. Heat gently and stir until just hot.
Swap the onion
How well each one fits the dish's main ingredients (cider, nutmeg, parsley, pepper, veal, egg, flour):
- Shallotfits better
- Carrotfits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against cider, nutmeg, parsley, pepper, veal, egg, flour. Candidates are from the same food group and used in at least 100 recipes.
“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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