Why it works: Lemon and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and 14,036 recipes mention both. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
The recipe
Ingredients
Contains: milk, fish (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Prepare the cod
Soak the salted cod sounds in milk and water for several hours.
Boil the soaked sounds in milk and water until tender, then drain.
Cut the sounds into small pieces.
Cook and serve
Melt the butter in a pan and fry the onion for 2-3 minutes without browning.
Add lemon juice, parsley, pepper, and the fish to the pan.
Heat through and serve.
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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Lemon + parsleytop 1% of all pairsAroma overlapstrongMentioned together14,036 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Parsley + peppertop 2% of all pairsAroma overlapstrongMentioned together34,118 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Lemon + peppertop 2% of all pairsAroma overlapstrongMentioned together27,039 recipes
Shared aroma: 2-nonenal (fatty, green).
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Milk + buttertop 3% of all pairsAroma overlapstrongMentioned together81,222 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Onion + parsleytop 6% of all pairsAroma overlapstrongMentioned together25,834 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Salted cod sounds
- Provides the main protein and flaky texture once soaked and cooked.
- Milk
- Softens the salted cod during soaking and boiling and adds a mild, creamy body.
- Butter
- Adds fat and richness and carries the flavour of the onion.
- Lemon juice
- Adds acidity that brightens the mild, rich flavour of the fish.
The step that matters
Fry the onion without browning. Browned onion turns bitter and dark and changes the clean, mild flavour of the dish. Gentle heat softens the onion while keeping it pale.
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (milk, butter, lemon, parsley, pepper):
- Potatobetter flavor fit
- Carrotbetter flavor fit
- Capsicumbetter flavor fit
- Onionthe original
Fit is the average pairing score against milk, butter, lemon, parsley, pepper. 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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