Why it works: Anchovy and ketchup match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 479 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Fish Scalloped
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.
Make the sauce
Melt the butter in a saucepan.
Add the flour and cook for 3 to 4 minutes.
Pour in the milk, stir until it boils, and let it simmer slowly for 10 minutes.
Assemble and bake
Separate the fish into large flakes.
Add the fish to the sauce along with the anchovy essence, ketchup, mustard, salt, pepper, and cayenne.
Stir over the heat until the mixture is thoroughly hot.
Fill buttered scallop shells with the mixture.
Cover lightly with breadcrumbs and dot with small pieces of butter.
Bake in a hot oven at 400°F (200°C) until nicely browned, or brown the surface with a hot salamander.
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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Anchovy + ketchuptop 2% of all pairsSmell alikestrongCooked together479 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Walnut + mustardtop 9% of all pairsSmell alikestrongCooked together849 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Fish + anchovytop 9% of all pairsSmell alikelowCooked together637 recipes
Shared aroma: decanal (soap, orange peel).
-
Fish + buttertop 12% of all pairsSmell alikemoderateCooked together4,488 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
- Butter
- Enriches the sauce and helps the breadcrumbs brown on top.
- Flour
- Thickens the milk into a smooth sauce that holds the fish together.
- Milk
- Forms the liquid base of the sauce, giving it body and creaminess.
- Remains of cold fish
- Provides the main filling, with its flakes staying distinct in the sauce.
- Anchovy essence
- Adds a salty, savoury depth that boosts the flavour of the fish.
The step that matters
Cooking the flour in the butter. Cooking the flour for 3 to 4 minutes removes its raw taste and lets it thicken the milk evenly. Skipping this leaves a pasty flavour and a thinner sauce.
Swap the mustard
How well each one fits the dish's main ingredients (fish, butter, flour, milk, anchovy, walnut, ketchup):
- Shallotfits better
- Capsicumfits better
- Chivefits better
- Mustardthe original
Fit is the average pairing score against fish, butter, flour, milk, anchovy, walnut, ketchup. 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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