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 ↓
Escaloped Fish
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Make the sauce
In a double boiler, heat the milk with the mace, onion, parsley, and bay leaf until boiling.
In a separate bowl, rub together the butter and flour.
Remove the seasoning from the milk.
Stir in the butter and flour mixture until thickened, about 2 minutes.
Add the beaten eggs, then remove from heat.
Stir in the salt and cayenne.
Assemble and bake
Layer sauce, then fish.
Repeat until all ingredients are used.
Finish with sauce on top.
Sprinkle the top with bread crumbs.
Bake in a 400°F (200°C) oven 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.
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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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Parsley + oniontop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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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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Butter + flourtop 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).
Butter and flour 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
- Milk
- Forms the liquid base of the sauce, giving it a creamy body.
- Butter
- Adds fat and richness, and combines with flour to start thickening the sauce.
- Flour
- Thickens the hot milk into a smooth sauce as its starch swells.
- Eggs
- Add richness and help set the sauce when heated.
- Bread crumbs
- Form a crisp, golden browned topping in the oven.
The step that matters
Thickening the sauce. Flour starch only thickens properly when it is stirred into hot milk and heated, which swells the granules. Stirring keeps the mixture smooth and prevents lumps. Adding the eggs after thickening and removing the pan from heat avoids curdling them.
Swap the mace
How well each one fits the dish's main ingredients (fish, egg, milk, butter, flour, parsley, onion):
- Capersfits better
- Nutmegfits better
- Thymefits better
- Macethe original
Fit is the average pairing score against fish, egg, milk, butter, flour, parsley, onion. 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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