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 ↓
Hollandaise Sauce
Ingredients
Directions
Prepare the bowl
Fill a bowl with hot water, then pour the hot water out of the bowl and wipe the bowl dry.
Add the butter to the bowl and beat until soft and creamy.
Make the sauce
Add the egg yolks one by one to the butter and beat until blended with the butter.
Mix 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.
Cook until thick as 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 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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Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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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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Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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
- Emulsify with the butter and thicken the sauce as they cook, giving it a rich body.
- Butter
- Provides fat that, emulsified with the yolks, gives the sauce its smooth, rich texture.
- Lemon juice
- Adds acidity that brightens the rich butter and yolk flavor.
The step that matters
Cook until thick as mayonnaise, beating constantly. Egg yolks thicken and emulsify with butter only within a gentle temperature range. Too much heat scrambles the yolks and curdles the sauce, while constant beating keeps the emulsion even and prevents lumps.
“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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