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 Pie
Ingredients
Directions
The book says “a cool oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Make the filling
Boil the milk with the butter.
In a bowl, beat the eggs well.
Once the milk mixture is cool, pour it over the beaten eggs.
Add the lemon juice and finely chopped lemon peel.
Bake
Pour the mixture into a dish lined with puff pastry.
Bake in a cool oven at 300°F (150°C) until set.
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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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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Milk + eggtop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Set the filling into a firm, sliceable custard as they cook.
- Milk
- Provides the liquid base and a soft, creamy texture.
- Butter
- Adds fat for richness and a smooth mouthfeel.
- Lemon juice
- Adds acidity that brightens the flavour and balances sweetness.
- Lemon peel
- Contributes aromatic lemon oils for fragrance.
The step that matters
Cool the milk before adding it to the eggs. Hot milk poured onto raw eggs can scramble them. Cooling the milk first lets the egg proteins thicken gently into a smooth custard as the pie bakes.
Swap the lemon
How well each one fits the dish's main ingredients (milk, butter, egg):
- Vanillafits better
- Coconutfits better
- Figfits about as well
- Lemonthe original
Fit is the average pairing score against milk, 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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