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Dessert

Lemon Pie

A tart pie filled with lemon custard and topped with a meringue frosting.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. 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. Juice the lemon and mix with the egg yolks, sugar, flour, milk, and butter until smooth.

Bake and top

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

  2. Whip the egg whites until stiff peaks form and spread over the pie as frosting.

  3. Return to the oven for a few minutes until the frosting is 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 + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  2. Lemon + walnuttop 10% of all pairs
    Smell alikestrong
    Cooked together2,149 recipes

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

  3. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Flour + walnuttop 12% of all pairs
    Smell alikemoderate
    Cooked together5,873 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Flour and butter barely smell alike, yet cooks put them together in 124,287 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 as they set and give it a rich, smooth texture.
Sugar
Sweetens the filling and balances the sharpness of the lemon juice.
Lemon
Provides the acidity and bright flavor of the filling.
Flour
Helps stabilize the filling so it sets smoothly rather than runny.
Egg whites
Whipped into stiff peaks to form a light meringue topping that browns in the oven.

The step that matters

Baking the filling until set. Underbaked egg yolk filling stays runny, while overbaking can make it weep or turn grainy as the proteins over-tighten. Watch for a set center that still jiggles slightly.

Swap the walnut

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

  1. Almondfits better
  2. Pistachiofits about as well
  3. Milletfits about as well
  4. Walnutthe original

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