Why it works: Potato and pepper are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 8,305 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Fish Pie
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Remove skin and bones from the fish and break it into small pieces.
Mix the fish with the white sauce and place it in a pie dish.
Assemble and bake
Cover the mixture with nicely mashed potatoes.
Dot the top with a little dripping.
Bake in a 350°F (175°C) oven for about 20 minutes.
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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Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Fish + potatotop 15% of all pairsSmell alikemoderateCooked together134 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
-
Fish + saucetop 20% of all pairsSmell alikelowCooked together1,487 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Fish + peppertop 21% of all pairsSmell alikemoderateCooked together3,948 recipes
Shared aroma: 2-nonenal (fatty, green).
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Sauce + potatotop 25% of all pairsSmell alikelowCooked together1,073 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cooked fish
- Provides the main filling and savory flavor of the pie.
- White sauce
- Binds the fish into a moist, creamy filling.
- Mashed potatoes
- Forms a soft topping that covers the filling while baking.
- Dripping
- Adds fat to the potato topping, helping it brown as it bakes.
The step that matters
Dot the top with a little dripping. Fat on the potato surface promotes browning in the oven, so skipping it can leave the topping pale. Spreading the potatoes evenly over the filling also helps it brown uniformly.
Swap the potato
How well each one fits the dish's main ingredients (fish, sauce, pepper):
- Capsicumfits better
- Tomatofits better
- Horseradishfits better
- Potatothe original
Fit is the average pairing score against fish, sauce, pepper. 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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