Why it works: Parsley and lemon 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 ↓
Small 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.
Prepare
Wash and dry the fish.
Butter a sheet of stiff writing paper.
Lay the fish on the paper.
Sprinkle with finely chopped onion or shallot, parsley, pepper, and coarse sea salt.
Squeeze a few drops of lemon juice over the fish.
Add small pieces of butter around the fish.
Bake and serve
Wrap the fish in the paper and bake at 400°F (200°C) for twenty minutes.
Serve the fish in the paper in which they were cooked.
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 + lemontop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
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 + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 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
- Small fish
- Forms the main body of the dish, cooking gently inside the sealed paper.
- Butter
- Adds moisture and richness, basting the fish as it steams in the paper.
- Onion or shallot
- Adds a mild aromatic sharpness that perfumes the fish as it cooks.
- Lemon juice
- Adds acidity that brightens the flavour of the fish.
The step that matters
Wrapping the fish tightly in the paper. The sealed paper traps steam so the fish cooks gently in its own moisture. A loose or torn wrap lets steam escape, which can leave the fish dry or unevenly cooked.
Swap the onion
How well each one fits the dish's main ingredients (fish, butter, parsley, pepper, lemon):
- Shallotfits better
- Carrotfits better
- Potatofits better
- Onionthe original
Fit is the average pairing score against fish, butter, parsley, pepper, lemon. 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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