Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and 34,118 recipes mention both. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
The recipe
Ingredients
Contains: milk, fish, shellfish (auto-detected from the ingredients and method; we can miss things, so check labels)
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 and bake
Preheat the oven to 350°F (175°C).
Spread butter on a silver dish and place the cod slices on top.
Season with pepper and coarse sea salt, then sprinkle with chopped parsley.
Moisten with French white wine and oyster liquor.
Cover with buttered paper and bake for 30 minutes, basting occasionally.
Finish and serve
Once done, pour the cooking liquid into a prepared ragout.
Wipe the edges of the dish with a wet napkin, sauce the cod with the ragout.
Garnish with fried smelts and crayfish, and add glazed oval croutons around the 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 aroma chemistry they share, and how many recipes mention both.
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Pepper + parsleytop 2% of all pairsAroma overlapstrongMentioned together34,118 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + white winetop 3% of all pairsAroma overlapstrongMentioned together5,039 recipes
Shared aroma: ethyl octanoate (fruity, wine).
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Butter + oystertop 5% of all pairsAroma overlapstrongMentioned together8,175 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
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Pepper + white winetop 7% of all pairsAroma overlapmoderateMentioned together5,223 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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White wine + oystertop 7% of all pairsAroma overlapmoderateMentioned together505 recipes
Shared aroma: 2,3-pentanedione (butter, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cod
- Forms the main body of the dish, cooking gently to become flaky and tender.
- Butter
- Adds richness and moisture, and keeps the fish from sticking to the dish.
- French white wine
- Adds acidity and moisture, and carries flavour into the cooking liquid.
- Oyster liquor
- Adds a briny, savoury flavour that seasons the fish as it cooks.
The step that matters
Cover with buttered paper and bake for 30 minutes, basting occasionally.. Cod is lean and delicate, so it dries out and toughens quickly in heat. The buttered paper traps moisture and basting keeps the surface wet, helping the flesh stay tender and flake cleanly.
Flavor stand-ins for the parsley
How well each one fits the dish's main ingredients (butter, pepper, white wine, oyster):
- Thymeabout as good a flavor fit
- Parsleythe original
Fit is the average pairing score against butter, pepper, white wine, oyster. 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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