Why it works: Parsley and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,037 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Fish-and-Potato Pie
Ingredients
Directions
The book says “a very slow oven”. The 350°F in the steps is the modern equivalent, not the book's own figure.
Prepare
Peel and cook the potatoes.
Steam or gently boil the fish, then break it into small pieces, removing any bones.
Assemble and bake
In a basin, mix the fish with the cooked potatoes, margarine, parsley, pepper, and salt.
Transfer the mixture to a baking dish and top with lemon sauce.
Bake in a moderate oven (350°F / 175°C) until heated through.
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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Parsley + lemontop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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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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Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Fish
- Forms the main body of the filling and provides its flaky texture.
- Potatoes
- Add bulk and starch that help bind the filling and give it a soft, cohesive texture.
- Margarine
- Adds fat that enriches the filling and keeps it moist as it bakes.
- Lemon sauce
- Adds moisture and sharp acidity that balances the richness of the fat and fish.
The step that matters
Steam or gently boil the fish. Fish proteins toughen and dry out when overcooked. Cooking it gently until just opaque keeps the flakes tender, so they stay moist once baked again in the pie.
Swap the potato
How well each one fits the dish's main ingredients (fish, pepper, parsley, lemon, sauce):
- Shallotfits better
- Carrotfits better
- Capsicumfits better
- Potatothe original
Fit is the average pairing score against fish, pepper, parsley, lemon, sauce. 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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