Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Fish Croquettes
Ingredients
Directions
Make the mixture
Season the fish with Worcestershire sauce, cayenne pepper, and nutmeg.
In a saucepan, combine milk, flour, butter, pepper, and salt; cook for 5 minutes.
Add the sauce to the fish and mix well.
Once cool, shape the mixture into oblong forms.
Fry and garnish
Dip each croquette into the beaten egg, then fry in deep boiling lard until golden.
Garnish each croquette with a sprig of celery.
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.
Photo for illustrative purposes only · Contact us to use it
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Pepper + nutmegtop 7% of all pairsSmell alikestrongCooked together13,015 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Nutmeg + flourtop 8% of all pairsSmell alikemoderateCooked together18,623 recipes
Shared aroma: isobutyraldehyde (malty, green).
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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).
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
- Fish
- Forms the bulk of the croquette and supplies its main flavour.
- Milk
- Combines with flour and butter to make the thick sauce that binds the fish.
- Flour
- Thickens the milk and butter into a sauce that holds the mixture together.
- Egg
- Coats the shaped croquettes so they set and brown during frying.
- Butter
- Adds richness and fat to the thickened sauce, improving flavour and texture.
The step that matters
Cooling the mixture before shaping. The fish and sauce must be cool and firm enough to hold their shape; shaping a warm mixture makes it soft and likely to break apart in the hot lard.
Swap the nutmeg
How well each one fits the dish's main ingredients (fish, sauce, pepper, milk, flour, butter, egg):
- Capersfits about as well
- Nutmegthe original
- Parsleyfits about as well
- Tarragonfits about as well
Fit is the average pairing score against fish, sauce, pepper, milk, flour, butter, egg. 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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