Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Fish Pie
Ingredients
Directions
The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Break the fish into flakes.
Mash the potatoes with a little milk and salt.
Assemble and bake
Season the fish and place it in a pie dish with parsley, mace, and melted butter.
Pile the mashed potatoes on top, mark with a fork, and bake at 400°F (200°C) until brown.
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 + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + milktop 9% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cooked fish
- Forms the main body of the filling, giving it flaky texture.
- Cooked potatoes
- Make the mashed topping that sets and browns in the oven.
- Butter
- Adds fat and richness, and helps keep the filling moist.
- Milk
- Moistens the mashed potatoes so they spread smoothly over the fish.
- Mace
- Adds a warm, aromatic flavour to the fish filling.
The step that matters
Baking the potato topping until brown. Marking the mashed potatoes with a fork creates ridges that brown well, and the surface needs enough time in the oven toColour. Stopping too early leaves the topping pale and the filling underheated, while baking too long can dry the potatoes out.
Swap the mace
How well each one fits the dish's main ingredients (fish, butter, potato, pepper, parsley, milk):
- Thymefits better
- Marjoramfits better
- Dillfits better
- Macethe original
Fit is the average pairing score against fish, butter, potato, pepper, parsley, milk. 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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