Why it works: Lemon and sugar 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 ↓
Lemon or Orange Cream Without Cream
Ingredients
Directions
Prepare the fruit
Shave the rind of the lemons or oranges into the water and boil until soft enough to mash.
Rub sugar on the fruit to extract flavor and color.
Remove the white pith and squeeze the juice into the sugar, using a total of ½ pound of sugar.
Make the custard
Beat the eggs well.
Mix the peels, liquid, juice, and sugar with the eggs.
Strain the mixture through a fine cloth into a clean saucepan.
Heat gently, stirring continuously until thick and hot, but do not let it boil.
Remove from heat and beat until nearly cold.
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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Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Lemon + eggtop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
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Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
Lemon and sugar 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
- Eggs
- Egg yolks or whites thicken the custard as they heat and set it into a soft, spoonable texture.
- Sugar
- Sweetens the custard and, rubbed on the fruit, helps draw out flavor and color from the rind.
- Lemons or oranges
- Provide the main flavor, aroma and acidity, with the rind and juice both used.
The step that matters
Heat gently without boiling. Egg proteins thicken the custard as it warms, but if it boils the eggs can scramble and curdle, leaving a grainy texture. Stirring constantly and stopping once it is thick and hot keeps it smooth.
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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