Why it works: Butter and lemon are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 41,227 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Lemon Paste for Cheese Cakes
Ingredients
Directions
Make the lemon mixture
Combine butter and sugar in a clean saucepan and stir until the sugar melts.
Add the juice of 2 lemons.
Blend the yolks and whites of the eggs in a bowl.
Stir in the grated rind of 2 lemons.
Add the egg mixture to the saucepan.
Stir continuously and let it boil gently until it resembles honey.
Pot and store
Pour the mixture into a dry pot.
Let it cool.
Cover as you would jam.
Store in a cool, dry place; it will keep for twelve months or more.
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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Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Sugar + lemontop 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).
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
- Butter
- Adds richness and a smooth, silky body to the set mixture.
- Sugar
- Sweetens the jam and, with the heat, thickens it into a spreadable texture.
- Eggs
- Egg yolks and whites thicken the mixture as they cook, giving it a custard-like set.
- Lemons
- Juice and rind supply the sharp acidity and bright aroma that define the flavour.
The step that matters
Stir continuously and let it boil gently until it resembles honey. Egg proteins can scramble or curdle if the mixture overheats or is left unstirred, so constant stirring and gentle heat keep it smooth while it thickens.
Swap the lemon
How well each one fits the dish's main ingredients (butter, sugar, egg):
- Vanillafits better
- Lemonthe original
- Raisinfits about as well
- Figfits about as well
Fit is the average pairing score against butter, 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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