Why it works: Tea and lemon work together. They rank in the top 8% of all ingredient pairs, and cooks put them together in 610 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Lemon Pie
Ingredients
Directions
Make the filling
In a saucepan, combine boiling water, sugar, lemon juice, butter, and cornstarch.
Cook over medium heat, stirring constantly, until thickened like honey.
Remove from heat and gently fold in the beaten egg yolks.
Assemble
Pour the filling into a pre-baked rich puff pastry shell.
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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Tea + lemontop 8% of all pairsSmell alikemoderateCooked together610 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Lemon + buttertop 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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Sugar + buttertop 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).
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
- Cornstarch
- Thickens the lemon juice and water mixture into a smooth, sliceable filling as it heats.
- Egg yolks
- Add richness and help set the filling once folded in.
- Sugar
- Sweetens the filling and balances the sharpness of the lemon juice.
- Lemon juice
- Provides the tart flavor that defines the pie.
- Butter
- Adds fat for a silkier texture and rounded flavor.
The step that matters
Cook the filling while stirring constantly. Cornstarch thickens only when the mixture reaches a boil and stays there, and constant stirring prevents scorching at the bottom of the pan. Folding in the egg yolks after removing the pan from heat keeps them from curdling.
Swap the lemon
How well each one fits the dish's main ingredients (tea, sugar, butter, egg):
- Vanillafits better
- Lemonthe original
- Peachfits about as well
- Figfits less well
Fit is the average pairing score against tea, sugar, butter, 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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