Why it works: Lemon and pepper match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Tartarre Sauce for Salmon
Ingredients
Directions
Prepare
Chill the salad oil by placing the bottle in cold water with ice.
In a three-pint stewpan, separate the yolks from the eggs.
Whisk the egg yolks until smooth.
Make the sauce
Slowly add the chilled salad oil while whisking continuously to emulsify.
Stir in the vinegar and lemon juice.
Season with salt and pepper to taste.
Add chopped fresh herbs if desired.
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 + peppertop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Egg + lemontop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
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Vinegar + lemontop 20% of all pairsSmell alikemoderateCooked together7,334 recipes
Shared aroma: acetic acid (sour, vinegar).
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Egg + vinegartop 33% of all pairsSmell alikelowCooked together12,922 recipes
Shared aroma: acetic acid (sour, vinegar).
Egg and lemon barely smell alike, yet cooks put them together in 44,316 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
- Egg yolks
- Emulsifier that holds the oil and vinegar together as a thick, smooth sauce.
- Salad oil
- Provides the fat that gives the sauce its rich body and mouthfeel.
- Vinegar
- Adds acidity that brightens the flavour and balances the richness of the oil.
- Lemon juice
- Adds further acidity and fresh citrus aroma to the sauce.
The step that matters
Slowly add the chilled salad oil while whisking continuously. Oil added too fast before the yolks have absorbed it cannot be dispersed into tiny droplets, so the emulsion breaks and the sauce separates. Continuous whisking and a slow pour let the lecithin in the yolks coat each droplet and keep the sauce thick.
“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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