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Dessert

Lemon Pie

A baked lemon custard pie topped with meringue.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Milk and lemon are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 19,053 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Lemon Pie

Ingredients

Directions

The book gives no oven temperature. The 300°F (150°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare the filling

  1. Preheat the oven to 300°F (150°C).

  2. In a bowl, mix the egg yolks, sugar, salt, milk, cornstarch, lemon juice, and lemon rind until smooth.

  3. Pour the mixture into a pie crust and bake slowly until set.

Make the meringue and finish

  1. For the meringue, beat the egg whites until soft peaks form, then gradually add the powdered sugar until stiff peaks form.

  2. Spread the meringue over the pie and bake until lightly browned.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Milk + lemontop 15% of all pairs
    Smell alikemoderate
    Cooked together19,053 recipes

    Shared aroma: 2-nonenal (fatty, green).

  2. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

    Shared aroma: 2-nonenal (fatty, green).

  3. Egg + milktop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

    Shared aroma: 2-nonenal (fatty, green).

  4. Sugar + milktop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

    Shared aroma: 2-nonenal (fatty, green).

  5. Egg + lemontop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

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

Eggs
Yolks thicken the filling and whites whip into the meringue topping.
Cornstarch
Thickens the lemon filling as it heats so it sets into a sliceable custard.
Sugar
Sweetens the filling and helps stabilise the whipped egg white meringue.
Lemons
Provide the acidity and bright flavour of the filling from juice and rind.
Sweet milk
Adds richness and moisture to the filling, which sets with the cornstarch.

The step that matters

Bake the filling slowly until set. Gentle heat lets the cornstarch and egg yolks thicken the filling evenly. Baking too hot can curdle the yolks or leave the custard weeping liquid.

Swap the lemon

How well each one fits the dish's main ingredients (egg, sugar, milk):

  1. Vanillafits better
  2. Figfits about as well
  3. Raisinfits about as well
  4. Lemonthe original

Fit is the average pairing score against egg, sugar, milk. 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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