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
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 in the oven at 350°F (175°C) 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.
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, flaking into tender pieces as its proteins set during baking.
- Butter
- Adds richness and a rounded flavor, and helps keep the cod from sticking to the dish.
- French white wine
- Adds acidity and moisture, and its aroma mingles with the fish as it bakes.
- Oyster liquor
- Contributes briny moisture and savory depth to the cooking liquid that becomes the sauce.
The step that matters
Baking the cod. Cod is lean and its flesh firms and dries quickly once the proteins set, so overbaking makes it tough. Basting with the cooking liquid keeps the surface moist while the fish cooks through.
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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