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 ↓
Dutch Sauce
Ingredients
Directions
In a bowl, mix the egg yolks, olive oil, vinegar, and hot water.
Place the bowl over a pot of simmering water and cook until the mixture thickens, stirring constantly.
Remove from heat and stir in the salt, cayenne, and parsley.
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.
Photo for illustrative purposes only · Contact us to use it
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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Olive + parsleytop 6% of all pairsSmell alikestrongCooked together9,649 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Olive + vinegartop 10% of all pairsSmell alikemoderateCooked together12,297 recipes
Shared aroma: isoamyl acetate (banana, fruity).
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Olive + peppertop 11% of all pairsSmell alikemoderateCooked together30,263 recipes
Shared aroma: 2,4-decadienal (seaweed).
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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
- Egg yolks
- Emulsify the oil and water and thicken the sauce as they cook gently.
- Olive oil
- Adds richness and fat that gives the sauce a smooth, silky body.
- Vinegar
- Adds acidity that sharpens the flavour and balances the richness of the yolks and oil.
- Hot water
- Loosens the mixture so it can thicken gently into a pourable sauce.
The step that matters
Cook over simmering water while stirring constantly. Egg yolks thicken from gentle heat but scramble if they get too hot. Constant stirring over simmering water, not boiling, spreads the heat evenly and keeps the sauce smooth.
Swap the parsley
How well each one fits the dish's main ingredients (egg, olive, vinegar, pepper):
- Tarragonfits about as well
- Parsleythe original
- Dillfits about as well
- Garlicfits less well
Fit is the average pairing score against egg, olive, vinegar, pepper. 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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