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Dessert

Lemon Pie

A lemon pie with a meringue topping.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Sugar and flour are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 92,116 recipes. Both carry phenylacetaldehyde, which smells hawthorne, honey. 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. Grate the rind and squeeze the juice from the lemons.

  3. Beat the egg yolks with the coffee sugar and flour.

  4. Stir in the water, lemon juice, and lemon rind.

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

Make and top with meringue

  1. Beat the egg whites to stiff peaks and gradually add the powdered sugar.

  2. Spread the meringue over the pie and return to the oven to brown quickly.

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. Sugar + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  2. Egg + flourtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Lemon + flourtop 17% of all pairs
    Smell alikemoderate
    Cooked together30,404 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Coffee + sugartop 17% of all pairs
    Smell alikelow
    Cooked together4,344 recipes

    Shared aroma: beta-damascenone (apple, rose).

  5. Lemon + sugartop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

Egg and flour barely smell alike, yet cooks put them together in 106,462 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 as they set during baking.
Lemons
Supply the sharp acidity and aroma that define the pie.
Flour
Stabilizes the filling so it sets smoothly rather than runny.
Coffee sugar
Sweetens the filling to balance the lemon's acidity.
Egg whites
Whip into a foam that forms the light, airy meringue topping.

The step that matters

Beat the egg whites to stiff peaks. Under-whipped whites stay runny and weep, while over-whipped whites turn dry and grainy. Adding sugar gradually helps the foam stay stable and glossy so the meringue holds its shape and browns evenly.

Swap the lemon

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

  1. Raisinfits better
  2. Vanillafits better
  3. Figfits better
  4. Lemonthe original

Fit is the average pairing score against egg, coffee, sugar, flour. 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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