Why it works: Lemon and pepper match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and 27,047 recipes mention both. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Hollandaise Sauce
Ingredients
Directions
Make the sauce
Heat the white sauce in a saucepan.
In a bowl, mix the stock and egg yolks together.
Whisk the mixture into the hot sauce over low heat until it thickens, but do not let it boil.
Stir in the lemon juice and add the butter gradually, mixing well.
Season with salt and pepper to taste.
Finish and serve
Strain the sauce through a fine strainer or cloth.
Reheat gently 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 aroma chemistry they share, and how many recipes mention both.
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Lemon + peppertop 3% of all pairsAroma overlapstrongMentioned together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Sauce + buttertop 15% of all pairsAroma overlaplowMentioned together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Lemon + buttertop 16% of all pairsAroma overlapmoderateMentioned together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Egg + buttertop 17% of all pairsAroma overlapmoderateMentioned together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Lemon + eggtop 19% of all pairsAroma overlaplowMentioned together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
Sauce and butter share little aroma chemistry, yet 15,338 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
- Thicken the sauce and emulsify the butter into a smooth, rich texture.
- Butter
- Adds fat for richness and a silky, smooth mouthfeel.
- Lemon juice
- Adds acidity that brightens the sauce and balances the richness of the butter and yolks.
- White sauce
- Forms the thickened base that gives the sauce body.
- White stock
- Adds savory liquid that thins the base and carries flavour.
The step that matters
Whisk the yolks into the hot sauce over low heat without boiling. Egg yolks scramble if they get too hot, leaving lumps and a grainy texture. Gentle heat lets them thicken the sauce smoothly, and boiling can cause the emulsion to break.
“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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