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 Cheese
Ingredients
Directions
Prepare
Beat the yolks of 4 eggs in a bowl.
Melt ½ lb of butter gently and pour it over the beaten yolks.
Gradually add ¼ cup of caster sugar while mixing.
Stir in the juice and rind of 2 lemons.
Cook
Cook the mixture in a double boiler until thick.
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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Egg + buttertop 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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Egg + lemontop 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
- Egg yolks
- Thicken the mixture as they cook and give the lemon cheese its rich, set texture.
- Butter
- Adds fat for a smooth, rich mouthfeel and helps the mixture stay silky.
- Castor sugar
- Sweetens the curd and dissolves into the mixture for a smooth finish.
- Lemons
- Provide the acidity and aroma that define the dish, with the rind adding fragrant oils.
The step that matters
Cook in a double boiler until thick. Egg yolks can scramble if overheated. Gentle, indirect heat lets them thicken smoothly into a custard-like curd instead of turning grainy.
Swap the lemon
How well each one fits the dish's main ingredients (egg, butter, sugar):
- Vanillafits better
- Lemonthe original
- Raisinfits about as well
- Figfits about as well
Fit is the average pairing score against egg, butter, sugar. 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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