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 ↓
Baked Fish Rolls
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.
Make the filling
Melt the butter in a pan.
Add the flour and stir in the milk, cooking until boiling.
Add the fish, anchovy essence, and seasonings.
Shape the rolls
Roll out the potato pastry and cut it into 4-inch squares.
Place a small amount of the fish mixture on each square.
Brush the edges with egg, fold them over, and pinch to seal.
Brush the tops with egg and place on a greased baking tin.
Bake and serve
Bake in a 400°F (200°C) oven until golden.
Serve very hot.
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 + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Fish + anchovytop 9% of all pairsSmell alikelowCooked together637 recipes
Shared aroma: decanal (soap, orange peel).
-
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
- Potato pastry
- Forms the golden, crisp wrapper that encloses the filling.
- Cooked fish
- Provides the main filling, giving the rolls their savoury body.
- Flour
- Cooked with the butter and milk to thicken the filling into a binding sauce.
- Butter
- Adds richness and fat, and starts the flour-thickened sauce.
- Milk
- Combines with the flour and butter to form a smooth, thickened binder.
- Egg (in the method)
- Brushed on the edges to seal and on the tops to promote browning.
The step that matters
Sealing the edges. If the edges are not brushed with egg and pinched firmly, the pastry may not hold together, and the filling can leak out during baking.
Swap the parsley
How well each one fits the dish's main ingredients (potato, fish, milk, flour, butter, anchovy, pepper):
- Parsleythe original
- Capersfits about as well
- Thymefits less well
- Nutmegfits less well
Fit is the average pairing score against potato, fish, milk, flour, butter, anchovy, 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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