Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and 34,122 recipes mention both. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Finnan Haddie Baked in Milk
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the fish
Rinse the fish and soak it skin side up in lukewarm water for 2 hours.
Drain and wipe the fish dry.
Place the fish in a baking pan slightly larger than the fish.
Bake
Add onion slices, bay leaf, parsley, salt, and pepper.
Cut butter into bits and drop over the fish.
Pour enough milk to cover the fish.
Bake at 350°F (175°C) until cooked through.
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 aroma chemistry they share, and how many recipes mention both.
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Parsley + peppertop 2% of all pairsAroma overlapstrongMentioned together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Butter + milktop 7% of all pairsAroma overlapmoderateMentioned together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Onion + parsleytop 9% of all pairsAroma overlapmoderateMentioned together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + peppertop 11% of all pairsAroma overlapmoderateMentioned together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + fishtop 12% of all pairsAroma overlapmoderateMentioned together4,488 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Smoked haddock
- Is the main protein, flaked and tender after gentle baking in milk.
- Milk
- Surrounds the fish, keeping it moist and giving the baking liquid a mild, creamy body.
- Butter
- Adds richness and fat that carries flavour and keeps the fish from drying out.
The step that matters
Bake until cooked through. Fish turns dry and rubbery when overcooked, because its proteins tighten and squeeze out moisture. Check for flaking at the thickest part rather than relying on the time alone.
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (haddock, parsley, pepper, butter, milk, fish):
- Potatobetter flavor fit
- Capsicumbetter flavor fit
- Carrotbetter flavor fit
- Onionthe original
Fit is the average pairing score against haddock, parsley, pepper, butter, milk, fish. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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