Why it works: Lemon and walnut match in chemistry and in kitchens. They rank in the top 10% of all ingredient pairs, and cooks put them together in 2,149 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Lemonf Cheese
Ingredients
Directions
Grate the lemon, using all of it except the tough part.
Combine the grated lemon, eggs, sugar, and butter in a saucepan.
Boil the mixture together until it forms a smooth paste.
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 + walnuttop 10% of all pairsSmell alikestrongCooked together2,149 recipes
Shared aroma: 2-nonenal (fatty, green).
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Butter + walnuttop 15% of all pairsSmell alikemoderateCooked together6,832 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Lemon + buttertop 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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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Set the mixture into a thick, custard-like paste as they cook.
- Sugar
- Sweetens the spread and helps thicken it as it cooks down.
- Butter
- Adds richness and a smooth, silky mouthfeel to the paste.
- Lemon
- Provides the sharp, aromatic citrus flavour and zest oils.
The step that matters
Boil the mixture until it forms a smooth paste. Eggs thicken when heated but can scramble if the heat is too high or the mixture is left unstirred. Keep the heat moderate and stir constantly so the eggs set smoothly rather than curdling.
Swap the walnut
How well each one fits the dish's main ingredients (lemon, egg, sugar, butter):
- Almondfits better
- Pistachiofits about as well
- Walnutthe original
- Milletfits about as well
Fit is the average pairing score against lemon, egg, sugar, butter. 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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