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.
Make the cream
Beat the eggs well in a separate bowl.
Mix the peels, their liquid, juice, and sugar with the eggs.
Strain the mixture through a fine cloth into a clean saucepan.
Set the saucepan over gentle heat and stir continuously until thick and hot, but do not let it boil.
Remove from heat and beat until nearly cold.
Pour the mixture 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 mixture as it heats, giving the cream its set.
- Sugar
- Sweetens the cream and draws flavor and color out of the fruit rind.
- Lemons or oranges
- Provide the main flavor, acidity, and aromatic oils from the rind and juice.
The step that matters
Stirring over gentle heat without boiling. Egg proteins thicken as they heat, but if the mixture boils they can scramble and turn grainy, so it must stay below boiling while stirred constantly.
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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