Why it works: Corn and lemon 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 Pie
Ingredients
Directions
Make the filling
Wet the corn starch with cold water.
Pour boiling water over the corn starch until it thickens.
Add sugar, butter, salt, lemon juice, pulp, and grated rind to the mixture.
Bake the mixture until set.
Top and brown
Beat the egg whites until stiff, then gradually add sugar.
Spread the beaten egg whites over the baked pie and return to the oven to 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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Corn + lemontop 13% of all pairsSmell alikemoderateCooked together1,927 recipes
Shared aroma: 2-nonenal (fatty, green).
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Corn + buttertop 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
- Corn starch
- Thickens the filling as it heats, giving it a smooth, sliceable body.
- Lemon
- Provides the sharp acidity and fresh aroma that balance the sweetness of the filling.
- Sugar
- Sweetens the filling and, added gradually, helps stabilise the beaten egg whites.
- Egg whites
- Whip into a foam that sets into a light meringue topping and browns in the oven.
- Butter
- Adds fat for richness and a smoother mouthfeel in the filling.
The step that matters
Beating the egg whites. Whites must be beaten until stiff but not dry or grainy. Adding sugar gradually dissolves it into the foam, which stabilises the bubbles so the meringue holds its peaks, browns evenly, and resists weeping.
Swap the lemon
How well each one fits the dish's main ingredients (corn, sugar, butter, egg):
- Vanillafits better
- Coconutfits better
- Figfits about as well
- Lemonthe original
Fit is the average pairing score against corn, 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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