Why it works: Parsley and pepper 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 hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Remove the skin and bones from the fish and flake it well.
Boil the bread crumbs in the milk with the butter, pepper, grated nutmeg, salt, and chopped parsley.
Mix the boiled mixture with the flaked fish and place it in a greased pie dish.
Top and bake
Cover with a layer of mashed potato.
Bake in a hot oven at 400°F (200°C) until golden 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.
-
Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Parsley + nutmegtop 3% of all pairsSmell alikestrongCooked together5,062 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Parsley + potatotop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cold fish
- Forms the main body of the filling once flaked.
- Bread crumbs
- Soak up the hot milk and butter, thickening the filling and giving it body.
- Milk
- Moistens the crumbs and forms a creamy binding sauce with the butter.
- Butter
- Adds richness and fat that keeps the filling moist and flavourful.
- Mashed potato
- Forms a topping that browns in the oven and seals in moisture.
The step that matters
Boil the bread crumbs in the milk with the butter. The crumbs must absorb the milk and thicken into a binding base. If the mixture is too thin, the filling will be loose and watery once baked.
Swap the nutmeg
How well each one fits the dish's main ingredients (fish, butter, bread, milk, parsley, pepper, potato):
- Thymefits about as well
- Marjoramfits about as well
- Nutmegthe original
- Celeryfits about as well
Fit is the average pairing score against fish, butter, bread, milk, parsley, pepper, potato. 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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