Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. 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 the fish
Remove skin and bones from the fish and chop it coarsely.
Mix and assemble
Add the suet, mashed potato, white breadcrumbs, and season with salt and pepper.
Stir in the egg and enough milk to form a stiff batter.
Transfer the mixture to a well-greased baking dish.
Lightly cover the surface with browned breadcrumbs and dot with butter or dripping.
Bake and serve
Bake in a moderate oven at 350°F (175°C) for about 1 hour, or until set.
Serve hot in the baking dish or reheat if prepared overnight.
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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Milk + buttertop 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).
-
Fish + buttertop 12% of all pairsSmell alikemoderateCooked together4,488 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Fish + milktop 13% of all pairsSmell alikemoderateCooked together1,432 recipes
Shared aroma: 4-heptenal (creamy, biscuit).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cod or other white fish
- Provides the main body and flaky texture of the filling.
- Suet
- Adds fat that keeps the filling moist and rich as it cooks.
- Egg
- Binds the mixture and helps it set firm when baked.
- Mashed potato
- Adds body and softness, helping the filling hold together.
- White breadcrumbs
- Absorb liquid and help the mixture firm into a stiff batter.
- Milk
- Moistens the mixture so it forms a spreadable batter that sets when baked.
The step that matters
Stirring in enough milk for a stiff batter. Too little liquid leaves the mixture dry and crumbly, while too much keeps it loose and stops it setting firmly in the oven. Egg proteins coagulate on heating and bind the mixture, so the batter needs the right consistency before baking.
Swap the potato
How well each one fits the dish's main ingredients (fish, egg, milk, butter, pepper):
- Potatothe original
- Capsicumfits about as well
- Asparagusfits less well
- Chivefits less well
Fit is the average pairing score against fish, egg, milk, butter, 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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