Why it works: Lemon and parsley 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 ↓
Baked 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.
Prepare
Preheat the oven to 350°F (175°C).
Season the fish inside and out with salt and pepper.
Place the fish on a large dish and top with sliced onions and lemon juice. Cover and let sit for 1 hour.
Lay the fish in a baking pan with 4 slices of pork underneath and 3 slices on top.
Bake and serve
Pour melted butter over the fish and bake for 45 minutes.
Serve hot, garnished with lemon quarters and parsley.
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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Lemon + parsleytop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Onion + porktop 10% of all pairsSmell alikemoderateCooked together18,214 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Fish
- Forms the main body of the dish and provides the flesh that cooks through in the oven.
- Pork slices
- Release fat as they cook, keeping the fish moist and adding savory flavor.
- Butter
- Adds fat that promotes moisture and a rich, golden surface during baking.
- Onions
- Add sweetness and aroma as they soften and release flavor into the fish.
- Lemon juice
- Adds acidity that brightens the flavor of the fish and onions.
The step that matters
Letting the fish sit with onions and lemon juice for 1 hour. The acid in lemon juice begins to change the surface proteins of the fish, firming its texture and flavoring it before baking. Too little time leaves the flavor shallow, and the fish should stay cold while it rests.
Swap the onion
How well each one fits the dish's main ingredients (fish, pepper, lemon, pork, butter, parsley):
- Potatofits better
- Capsicumfits better
- Shallotfits better
- Onionthe original
Fit is the average pairing score against fish, pepper, lemon, pork, butter, parsley. 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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