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
Prepare
Fill a bowl with hot water, then pour it out and wipe the bowl dry.
Make the sauce
Add the butter to the bowl and beat until soft and creamy.
Add the egg yolks one by one, beating until blended with the butter.
Stir in the lemon juice, salt, and cayenne, and beat until smooth.
Remove the spoon and beat the mixture with an egg beater for five minutes.
Place the bowl in a double boiler with boiling water.
Add the boiling water to the butter and egg mixture and cook until thick like mayonnaise, beating constantly.
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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Butter + lemontop 16% of all pairsAroma overlapmoderateMentioned together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Butter + eggtop 17% of all pairsAroma overlapmoderateMentioned together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Egg + lemontop 19% of all pairsAroma overlaplowMentioned together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
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Butter + peppertop 21% of all pairsAroma overlapmoderateMentioned together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Egg and lemon share little aroma chemistry, yet 44,316 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
- Butter
- Provides richness and a smooth, creamy body to the sauce.
- Egg yolks
- Emulsify with the butter and thicken the sauce as they cook gently.
- Lemon juice
- Adds acidity that brightens the rich butter and egg flavour.
- Boiling water
- Adds moisture and heat that help the yolks thicken into a sauce.
The step that matters
Cooking the yolks until thick. Egg yolks thicken from heat, but if they get too hot they scramble. Beating constantly over gentle heat spreads the heat evenly and keeps the emulsion smooth.
“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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