Why it works: Pepper and lemon 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 ↓
White Sauce
Ingredients
Directions
In a saucepan, bring the stock to a boil, then remove from heat.
In a bowl, beat together the cream and egg, then strain it into the saucepan.
Season with pepper and coarse sea salt, then return to low heat.
Stir gently until the sauce thickens like custard, being careful not to boil to avoid curdling.
Strain the sauce and serve.
Optionally, add a few drops of lemon juice.
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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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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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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Cream + peppertop 23% of all pairsSmell alikelowCooked together21,449 recipes
Shared aroma: acetic acid (sour, vinegar).
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Cream + eggtop 24% of all pairsSmell alikelowCooked together42,166 recipes
Shared aroma: acetic acid (sour, vinegar).
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Cream + lemontop 30% of all pairsSmell alikelowCooked together15,640 recipes
Shared aroma: acetic acid (sour, vinegar).
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
- Cream
- Adds richness and body, giving the sauce a smooth, velvety texture.
- Egg
- Thickens the sauce as it gently heats, setting like a custard.
- Stock
- Provides the savory liquid base that the cream and egg thicken.
The step that matters
Stir gently over low heat without boiling. Egg proteins set at gentle heat and thicken the sauce. Boiling can overheat them, causing them to scramble and curdle, so the sauce turns grainy instead of 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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