Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Cod Pie
Ingredients
Directions
Prepare the cod
Lay the cod in salt for 4 hours, then wash it and place it in a dish.
Season the cod and add the butter and stock.
Bake
Cover with the paste crust and bake for 1 hour or longer.
Make the sauce and finish
Mix the stock, cream or milk, thickening, and lemon for sauce.
Bring the sauce to a boil and pour it into the pie through a hole in the crust.
Cover the hole with a small piece of pastry cut into a fanciful shape.
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 + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Nutmeg + macetop 4% of all pairsSmell alikemoderateCooked together6,557 recipes
Shared aroma: myristicin (spice, warm).
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Nutmeg + lemontop 5% of all pairsSmell alikestrongCooked together11,318 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Pepper + nutmegtop 7% of all pairsSmell alikestrongCooked together13,015 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cod
- Forms the flaky, tender filling that makes up the body of the pie.
- Butter
- Adds richness and fat that carries flavour through the fish and sauce.
- Flour thickening
- Starch thickens the sauce as it heats, giving it body rather than runniness.
- Cream or milk
- Adds creaminess and mild sweetness, smoothing the sauce and softening its edge.
- Stock
- Provides moisture and savoury depth to the fish and sauce.
The step that matters
Boiling the thickened sauce. Starch from the flour or butter thickening only swells fully once it reaches a boil. Stir while heating so the thickening disperses evenly and does not form lumps, then pour while hot so the sauce fills the pie smoothly.
Swap the mace
How well each one fits the dish's main ingredients (pepper, nutmeg, butter, sauce, cream, flour, lemon):
- Parsleyfits better
- Tarragonfits better
- Cinnamonfits better
- Macethe original
Fit is the average pairing score against pepper, nutmeg, butter, sauce, cream, flour, lemon. Candidates are from the same food group and used in at least 100 recipes.
“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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