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 ↓
Deviled Fish
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Make the sauce
Mince the cooked fish coarsely.
In a saucepan, melt the butter, then stir in the flour and cook for a minute.
Gradually add the milk, stirring until the sauce thickens.
Assemble and bake
Remove from heat and mix in the minced fish, finely mashed egg yolks, parsley, and seasonings.
Butter a baking dish or scallop shells, then fill with the fish mixture.
Sprinkle breadcrumbs over the top and brown in a 350°F (175°C) oven.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Fish + buttertop 12% of all pairsSmell alikemoderateCooked together4,488 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + parsleytop 12% of all pairsSmell alikemoderateCooked together16,675 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Flour
- Thickens the butter and milk into a smooth sauce that holds the fish together.
- Butter
- Adds richness and carries the flour so it cooks into the sauce without lumps.
- Milk
- Forms the liquid base that thickens into the creamy binding sauce.
- Egg yolks
- Mashed into the mixture to enrich the sauce and add a creamy texture.
- Cooked fish
- Provides the main flavour and bulk of the filling.
The step that matters
Stirring the milk into the roux. Adding milk gradually while stirring keeps the flour evenly dispersed, so the sauce thickens smoothly instead of forming lumps.
Swap the parsley
How well each one fits the dish's main ingredients (fish, flour, butter, milk, egg, lemon):
- Nutmegfits about as well
- Parsleythe original
- Capersfits about as well
- Tarragonfits about as well
Fit is the average pairing score against fish, flour, butter, milk, egg, lemon. 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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