Why it works: Pepper and parsley 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 ↓
Mayonnaise of Salmon
Ingredients
Directions
Make the mayonnaise
In a bowl, combine the egg yolk and mustard.
Stir in the oil drop by drop while mixing continuously until creamy.
Once the mixture is stiff, add the vinegar, cayenne pepper, and salt.
Garnish and serve
Garnish with parsley or celery tops before serving.
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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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mustard + parsleytop 8% of all pairsSmell alikestrongCooked together2,588 recipes
Shared aroma: trans-2-hexenal (green, leafy).
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Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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, flavor, and bulk of the dish.
- Egg yolk
- Acts as an emulsifier, holding the oil and vinegar together in a creamy, stable sauce.
- Mustard
- Helps stabilize the emulsion so the oil stays dispersed and the sauce does not separate.
- Oil
- Adds richness and body, giving the sauce its smooth, thick texture.
- Vinegar
- Adds acidity that sharpens the flavor and balances the richness of the oil.
The step that matters
Adding the oil drop by drop. Egg yolk can only emulsify a limited amount of oil at a time. Adding oil too quickly or stopping the mixing lets the oil separate out, so the sauce stays thin or breaks instead of turning creamy.
Swap the mustard
How well each one fits the dish's main ingredients (salmon, egg, vinegar, pepper, parsley):
- Cucumberfits better
- Chivefits better
- Capsicumfits better
- Mustardthe original
Fit is the average pairing score against salmon, egg, vinegar, pepper, 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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