Why it works: Milk and lemon are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 19,053 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Cream Pie
Ingredients
Directions
Prepare the custard
Combine milk, egg yolks, sugar, cornstarch, and grated lemon peel in a bowl. Beat well.
Cook the mixture over medium heat, stirring until it thickens like custard.
Assemble and bake
Prepare a pie crust and bake it until golden.
Pour the custard into the baked crust.
Beat the egg whites until stiff peaks form, then add sugar and mix well.
Spread the meringue over the top of the pie.
Return the pie to the oven and bake until the meringue is golden brown.
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 + lemontop 15% of all pairsSmell alikemoderateCooked together19,053 recipes
Shared aroma: 2-nonenal (fatty, green).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Milk + eggtop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
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Milk + sugartop 18% of all pairsSmell alikelowCooked together77,875 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
- Milk
- Forms the liquid base of the custard, setting into a creamy filling as it thickens.
- Egg yolks
- Thicken the custard and add richness to the filling.
- Cornstarch
- Thickens the custard so it holds its shape when sliced.
- Egg whites
- Whipped into stiff peaks to form the meringue topping, which gives a light texture.
- Sugar
- Sweetens the custard and helps stabilise the whipped egg whites in the meringue.
The step that matters
Cook the custard until it thickens. Cornstarch needs to reach a simmer to thicken fully. If the custard is undercooked, the filling stays runny and may not hold its shape when the pie is sliced.
Swap the lemon
How well each one fits the dish's main ingredients (milk, egg, sugar):
- Vanillafits better
- Figfits about as well
- Raisinfits about as well
- Lemonthe original
Fit is the average pairing score against milk, egg, 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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