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 ↓
Salmon on Toast
Ingredients
Directions
Prepare the salmon
Drain excess oil from the can of salmon.
Heat the salmon with ½ cup of water, seasoning with salt and pepper.
Make the sauce
In a saucepan, melt 1 tablespoon of butter, then stir in 1 tablespoon of flour to make a roux.
Gradually add 1 cup of milk to the roux, stirring until thickened.
Serve
Place the heated salmon on the toast and pour the hot cream sauce over it.
Garnish with parsley and slices of 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).
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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).
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 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).
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
- Salmon
- Provides the main protein and flaky texture of the dish.
- Butter
- Adds richness and flavour, and forms the base of the roux.
- Flour
- Thickens the milk into a smooth sauce when cooked with butter.
- Milk
- Forms the body of the white sauce, giving it creaminess.
The step that matters
Stirring the milk into the roux. Adding milk gradually while stirring keeps the flour from clumping, so the sauce thickens smoothly instead of becoming lumpy.
Swap the parsley
How well each one fits the dish's main ingredients (salmon, pepper, butter, flour, milk, lemon):
- Parsleythe original
- Cardamomfits about as well
- Dillfits about as well
- Nutmegfits less well
Fit is the average pairing score against salmon, pepper, butter, flour, milk, 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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