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 ↓
Halibut Steak a LA Flamande
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Wash and dry the halibut steak.
Butter the bottom of a flat, fire-safe dish.
Sprinkle grated onion, pepper, and salt over the bottom.
Assemble and bake
Place the fish on top and brush it with the egg yolk.
Sprinkle with more grated onion, pepper, salt, and chopped parsley.
Pour lemon juice over the fish and dot with butter.
Bake in a moderate oven at 350°F (175°C) for 30 minutes.
Serve
Serve in the baking dish, garnished with parsley and lemon.
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).
-
Pepper + parsleytop 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).
-
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
- Halibut steak
- Forms the main body of the dish and becomes flaky and moist as it cooks.
- Egg yolk
- Brushed over the fish to enrich the surface and help it brown lightly in the oven.
- Onion
- Grated onion lies under and over the fish, adding savory flavor and moisture as it cooks.
- Butter
- Adds richness and moisture, and carries flavor across the fish as it melts.
- Lemon juice
- Adds acidity that brightens the rich butter and the mild flavor of the fish.
The step that matters
Bake at the stated temperature for the full time. Halibut turns dry and tough when overcooked, and it can stay underdone in the centre if the oven is too cool. Checking that the flesh flakes easily helps you judge doneness.
Swap the onion
How well each one fits the dish's main ingredients (butter, pepper, parsley, egg, lemon):
- Shallotfits better
- Spinachfits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against butter, pepper, parsley, egg, 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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