Why it works: Lemon and sugar are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 53,532 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Lemon Meringue 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 lemon filling
In a saucepan, combine the lemon rind and juice, sugar, egg yolks, cornstarch, and hot water.
Mix well and bring to a boil, stirring constantly until thickened.
Prepare the meringue
Pre-bake the pie crust according to package instructions.
Pour the lemon filling into the pre-baked crust.
In a separate bowl, beat the egg whites until stiff peaks form, then gradually add the powdered sugar.
Bake and serve
Spread the meringue over the lemon filling and bake in a preheated oven at 350°F (175°C) until lightly browned.
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.
-
Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Lemon + eggtop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
-
Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
Lemon and sugar 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
- Egg yolks
- Thicken the filling and add richness and a custard-like texture.
- Cornstarch
- Thickens the lemon filling as it heats, giving it a sliceable body.
- Egg whites
- Whip into a foam that forms the meringue topping, setting and browning in the oven.
- Sugar
- Sweetens the filling and helps stabilize the whipped egg white meringue.
- Lemon
- Provides the tart acidity and aroma that flavor the filling.
The step that matters
Beat the egg whites until stiff peaks form. Egg whites must be whipped to a stable foam before sugar is added gradually. Under-whipped or greasy whites will weep or collapse, and any trace of yolk or fat prevents them from reaching full volume.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, egg):
- Vanillafits better
- Raisinfits about as well
- Lemonthe original
- Datesfits less well
Fit is the average pairing score against sugar, 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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