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
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
Boil the corn starch in 1 cup of water until thick.
In a bowl, mix the egg, sugar, lemon juice, and lemon rind.
Combine the thickened corn starch with the egg mixture.
Bake
Pour the filling into a pie crust.
Bake at 350°F (175°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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Corn + lemontop 13% of all pairsSmell alikemoderateCooked together1,927 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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Egg + lemontop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
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Egg + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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Corn + sugartop 21% of all pairsSmell alikelowCooked together7,168 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
- Corn starch
- Thickens the water into a smooth, stable base for the filling.
- Egg
- Sets during baking, giving the filling structure and body.
- Sugar
- Sweetens the filling and balances the sharpness of the lemon.
- Lemon juice and rind
- Adds sourness and bright lemon aroma to the filling.
The step that matters
Thicken the corn starch fully. Corn starch only thickens properly once it has boiled and swelled. If it is underdone, the filling stays thin and may not set well in the oven.
Swap the lemon
How well each one fits the dish's main ingredients (corn, egg, sugar):
- Vanillafits better
- Coconutfits about as well
- Raisinfits about as well
- Lemonthe original
Fit is the average pairing score against corn, 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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