Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Lemon Cream Pie
Ingredients
Directions
Make the filling
Heat the milk in a double boiler until boiling.
Add the cornstarch and stir until thickened, then remove from heat.
Mix in the sugar, lemon juice, zest, butter, and salt.
Bake and serve
Pour the mixture into a pie crust and bake until set.
Let cool, then frost as desired.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Milk + lemontop 15% of all pairsSmell alikemoderateCooked together19,053 recipes
Shared aroma: 2-nonenal (fatty, green).
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Lemon + buttertop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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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
- Milk
- Forms the creamy body of the custard filling.
- Cornstarch
- Thickens the liquid into a smooth custard as it heats.
- Sugar
- Adds sweetness that balances the tart lemon.
- Lemon
- Provides acidity and aroma from the juice and zest.
- Butter
- Adds fat for a richer, smoother texture.
The step that matters
Add the cornstarch and stir until thickened. Cornstarch must be stirred while the milk is hot to thicken evenly. If the mixture is not stirred, lumps can form and the filling may stay thin or grainy.
Swap the lemon
How well each one fits the dish's main ingredients (milk, sugar, butter):
- Vanillafits better
- Figfits better
- Peachfits better
- Lemonthe original
Fit is the average pairing score against milk, 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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