Why it works: Sugar and lemon are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 53,532 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
White Lemon Cream
Ingredients
Directions
Prepare
Squeeze the juice from the lemons.
Mix the lemon juice with the powdered sugar.
Beat the egg yolks well.
Add the lemon peel to the egg yolks.
Add the lemon juice to the egg yolks. Mix thoroughly.
Make the custard
Strain the mixture through a fine cloth into a saucepan.
Heat over a gentle fire, stirring continuously until thick and hot but not boiling.
Serve
Pour into jelly glasses.
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 + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Egg + lemontop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
-
Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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
- Thicken the custard as they heat and set into a smooth, spoonable texture.
- Powdered sugar
- Sweetens the custard and dissolves easily into the lemon juice.
- Lemon juice
- Adds acidity and bright flavour that balances the sweetness.
- Lemon peel
- Adds aromatic lemon oils for fragrance and flavour.
The step that matters
Heat over a gentle fire, stirring continuously. Egg yolks thicken from heat but curdle if they get too hot or boil. Gentle, constant stirring spreads the heat evenly so the custard turns thick and smooth rather than grainy.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, egg):
- Vanillafits better
- Raisinfits about as well
- Lemonthe original
- Datesfits less well
Fit is the average pairing score against sugar, egg. 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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