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Dessert

Lemon Pie

A lemon custard pie topped with a stiff 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 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare the filling

  1. Preheat the oven to 350°F (175°C).

  2. In a bowl, beat the egg yolks and 2 cups of powdered sugar together until well combined.

  3. Add the milk, lemon juice, and salt, and mix well.

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

Top and brown

  1. In another bowl, beat the egg whites with ½ cup of powdered sugar until stiff peaks form.

  2. Spread the meringue over the baked pie and brown it in the oven.

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

Egg yolks
Thicken the filling and give it a rich, custard-like body as they set.
Milk
Adds liquid and richness, making the filling creamy and smooth.
Lemon juice
Provides acidity that gives the filling its tart flavor and helps it set.
Egg whites
Whipped into a foam that forms the light, airy meringue topping.
Powdered sugar
Sweetens the filling and helps stabilize the whipped egg white meringue.

The step that matters

Whipping the egg whites to stiff peaks. Egg whites must be whipped until stiff peaks form so they hold air and stay glossy and stable. Under-whipped whites weep or collapse in the oven, and any trace of fat or yolk can stop them from foaming properly.

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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