Why it works: Sugar and cream are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 43,450 recipes. Both carry 2,3-butanedione, which smells butter, sweet. The science ↓
White Mayonnaise
Ingredients
Directions
Make the base
Combine lemon juice and vinegar in a bowl.
Add sugar and flour, mixing until well blended.
Cook in a double boiler, stirring constantly until thick.
Finish and serve
Remove from heat and gently fold in the stiffly beaten egg white.
Chill thoroughly.
Once chilled, fold in the whipped cream and serve.
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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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Vinegar + sugartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Lemon + flourtop 17% of all pairsSmell alikemoderateCooked together30,404 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and egg barely smell alike, yet cooks put them together in 106,462 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
- Flour
- Thickens the mixture as it cooks, giving it body.
- Egg white
- Adds lightness and airy structure when folded in stiffly beaten.
- Whipping cream
- Adds richness and a light, creamy texture when folded in whipped.
- Lemon juice
- Provides acidity that brightens the flavour and balances the sweetness.
- Sugar
- Adds sweetness that balances the sharpness of the acid.
The step that matters
Cook in a double boiler, stirring constantly until thick. Flour thickens only when heated enough, but direct heat can scorch or curdle the mixture. Gentle, constant stirring over a double boiler heats it evenly so it thickens smoothly without lumps or burning.
Swap the lemon
How well each one fits the dish's main ingredients (flour, vinegar, egg, sugar, cream):
- Raisinfits better
- Vanillafits better
- Strawberryfits better
- Lemonthe original
Fit is the average pairing score against flour, vinegar, egg, sugar, cream. Candidates are from the same food group and used in at least 100 recipes.
“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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