Why it works: Lemon and corn are a kitchen classic. They rank in the top 13% of all ingredient pairs, and cooks put them together in 1,927 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Lemon Cream Pie
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Make the filling
Preheat the oven to 350°F (175°C).
In a bowl, beat together the butter and sugar.
Stir the dissolved corn starch into the boiling water.
Add the butter and sugar mixture to the hot water and mix well.
Allow the mixture to cool, then add the lemon juice, lemon rind, and beaten egg yolks.
Pour the mixture into a pie crust and bake without a top crust.
Top and brown
Beat the egg whites until stiff, sweeten to taste, and spread over the baked pie.
Return the pie to the oven and brown the meringue slightly.
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 + corntop 13% of all pairsSmell alikemoderateCooked together1,927 recipes
Shared aroma: 2-nonenal (fatty, green).
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Butter + corntop 14% of all pairsSmell alikemoderateCooked together7,345 recipes
Shared aroma: 2,3-pentanedione (butter, sweet).
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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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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
- Egg yolks
- Thicken the filling and add richness and a custard-like body.
- Corn starch
- Thickens the boiling water into a glossy, sliceable filling as it cooks.
- Sugar
- Sweetens the filling and helps stabilise the beaten egg whites in the meringue.
- Lemon juice
- Adds acidity that balances the sweetness and gives the filling its bright flavour.
- Egg whites
- Whip into a foam that sets into a light, airy meringue topping.
- Butter
- Adds fat for smoothness and a rich mouthfeel in the filling.
The step that matters
Cool the starch mixture before adding the egg yolks. Cornstarch thickens when boiled, and hot egg yolks added too early can scramble and curdle. Letting the mixture cool slightly lets the yolks blend in smoothly and thicken gently in the oven.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, butter, egg, corn):
- Vanillafits better
- Coconutfits better
- Figfits about as well
- Lemonthe original
Fit is the average pairing score against sugar, butter, egg, corn. 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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