Why it works: Lemon and butter are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 41,227 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Australian Lemon Pie
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the crust
Preheat the oven to 400°F (200°C).
Line a deep pie plate with rich pastry and bake until light brown.
Make the filling
In a bowl, mix the lemon juice, grated lemon rind, sugar, and softened butter.
Beat the yolks of 6 eggs and the 3 reserved egg whites, then add to the mixture.
Place the mixture in a double boiler and cook until thickened, stirring constantly.
Fill the baked pie crust with the lemon mixture.
Top and brown
Make meringue by beating the 3 egg whites to a froth and sweetening them.
Spread the meringue over the pie and brown lightly in the oven.
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 + buttertop 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).
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Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Lemon + eggtop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
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 lemon filling as they cook and add richness.
- Lemon juice
- Provides the sharp acidity that defines the filling's flavor.
- Sugar
- Sweetens the filling and balances the tartness of the lemon.
- Butter
- Adds fat for a smooth, rich texture in the filling.
- Egg whites
- Whipped into meringue to create a light, airy topping that browns.
The step that matters
Cooking the lemon mixture in the double boiler. Egg yolks thicken as they heat, but if the mixture gets too hot or is not stirred constantly, the eggs can scramble and the filling turns grainy. Gentle, steady heat with constant stirring keeps it smooth.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, butter, egg):
- Vanillafits better
- Lemonthe original
- Raisinfits about as well
- Figfits about as well
Fit is the average pairing score against 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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