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Dessert

Apple Pie

A baked apple pie with a buttery, egg-based filling and lemon peel.

From an old cookbook · modernised transcription
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Why it works: Apple and lemon are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 7,551 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Apple 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. Boil and mash the apples.

  2. While warm, mix in the softened butter until creamy.

  3. Add the egg yolks, powdered sugar, and lemon peel, and mix well.

  4. In a separate bowl, beat the egg whites until stiff peaks form, then fold into the mixture.

Bake

  1. Line a pie dish with the crust, pour in the filling, and bake at 350°F (175°C) for 1 hour.

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. Apple + lemontop 14% of all pairs
    Smell alikemoderate
    Cooked together7,551 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  2. Apple + buttertop 14% of all pairs
    Smell alikemoderate
    Cooked together8,706 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  3. Butter + lemontop 16% of all pairs
    Smell alikemoderate
    Cooked together41,227 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  4. Butter + eggtop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

  5. Butter + sugartop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Apples
Provide the bulk and moisture of the filling, with a soft, tender texture once mashed.
Butter
Adds richness and a creamy texture to the filling.
Eggs
Egg yolks enrich and set the filling, while whipped whites add lightness and structure.
Powdered sugar
Sweetens the filling and dissolves smoothly into the mixture.
Lemon peel
Adds bright, aromatic citrus flavour that balances the sweetness.

The step that matters

Folding in the egg whites. Stiff whites hold air that lightens the filling. Folding gently, rather than stirring, keeps that air from collapsing, so the pie bakes up lighter and less dense.

Swap the apple

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

  1. Vanillafits better
  2. Orangefits better
  3. Raspberryfits better
  4. Applethe original

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