Why it works: Vinegar and pepper are a kitchen classic. They rank in the top 14% of all ingredient pairs, and 27,814 recipes mention both. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Hollandaise Sauce
Ingredients
Directions
Reduce the vinegar
Put the vinegar in a saucepan and reduce it by three-fourths.
Make the sauce
Add the water and egg yolks, stirring until the sauce thickens. Use a double boiler.
Remove from heat and add the butter in small pieces.
Season
Season with pepper and salt.
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 aroma chemistry they share, and how many recipes mention both.
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Vinegar + peppertop 14% of all pairsAroma overlapmoderateMentioned together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + eggtop 17% of all pairsAroma overlapmoderateMentioned together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + peppertop 21% of all pairsAroma overlapmoderateMentioned together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Vinegar + buttertop 23% of all pairsAroma overlapmoderateMentioned together13,513 recipes
Shared aroma: isoamyl acetate (banana, pear).
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Vinegar + eggtop 33% of all pairsAroma overlaplowMentioned together12,922 recipes
Shared aroma: acetic acid (sour, vinegar).
Vinegar and egg share little aroma chemistry, yet 12,922 recipes mention both: they likely 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
- Emulsify and thicken the sauce as their proteins set with gentle heat.
- Butter
- Adds richness and a smooth, velvety texture as it emulsifies into the yolks.
- Vinegar
- Reduced to concentrate its acidity, giving the sauce a sharp, bright flavor.
The step that matters
Thicken the yolks over gentle heat. Egg yolk proteins set as they warm, so too much heat scrambles them into lumps. Stirring steadily over gentle heat, such as a double boiler, lets the sauce thicken smoothly.
“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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