Why it works: Pepper and parsley 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 ↓
To Boil Mackerel in Marinade
Ingredients
Directions
In a pot, combine weak broth, vinegar, sweet herbs, small onions, cloves, pepper, and salt.
Boil the mixture for one hour.
Add the mackerel to the broth and cook until ready.
Remove the fish and strain the liquid.
Thicken the strained liquid and stir in chopped parsley.
Serve the mackerel with the green sauce, white gravy sauce, and hard-boiled eggs.
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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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Clove + peppertop 5% of all pairsSmell alikestrongCooked together17,451 recipes
Shared aroma: ethyl octanoate (fruity, wine).
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Clove + parsleytop 6% of all pairsSmell alikestrongCooked together6,768 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
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Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
Swap the onion
How well each one fits the dish's main ingredients (vinegar, clove, pepper, parsley, sauce, egg):
- Shallotfits better
- Capsicumfits better
- Mustardfits better
- Onionthe original
Fit is the average pairing score against vinegar, clove, pepper, parsley, sauce, egg. Candidates are from the same food group and used in at least 100 recipes.
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