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 ↓
Cold Boiled Fish Baked with White Sauce
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. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Prepare
Preheat the oven to 350°F (175°C).
Season the fish with salt and pepper.
Assemble and bake
Layer the fish in a dish with cracker crumbs and sliced eggs, finishing with crumbs and bits of butter on top.
In a saucepan, combine the milk, flour, butter, sherry, and parsley to make a sauce.
Pour the sauce over the fish and bake for 30 minutes.
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).
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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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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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Parsley + flourtop 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
- Eggs
- Hard-boiled slices add body and richness to the layered fish dish.
- Flour
- Thickens the milk and butter into a smooth, cohesive white sauce.
- Butter
- Adds richness and fat, helping the crumb topping brown lightly in the oven.
- Milk
- Forms the base of the white sauce, giving it creamy moisture.
- Cracker crumbs
- Form a crisp, absorbent layer that helps hold the fish together.
The step that matters
Pour the sauce over the fish and bake for 30 minutes. Flour must be fully mixed into the milk and butter before pouring, since lumps stay in the sauce and it may not thicken evenly during baking.
Swap the parsley
How well each one fits the dish's main ingredients (fish, milk, egg, pepper, flour, butter, sherry):
- Nutmegfits about as well
- Parsleythe original
- Cinnamonfits about as well
- Thymefits about as well
Fit is the average pairing score against fish, milk, egg, pepper, flour, butter, sherry. 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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