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Dessert

Lemon Pie

A sweet pie with a lemon custard filling made from corn starch, sugar, egg, butter, and lemon juice.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Corn and lemon are a kitchen classic. They rank in the top 13% of all ingredient pairs, and cooks put them together in 1,927 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Lemon Pie

Ingredients

Directions

Make the filling

  1. Moisten the corn starch with a little cold water.

  2. Add boiling water and stir over heat until it boils and thickens, about 2-3 minutes.

  3. Remove from heat and stir in butter and sugar.

  4. Let cool slightly, then add the beaten egg and lemon juice and rind.

Bake and serve

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

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. Corn + lemontop 13% of all pairs
    Smell alikemoderate
    Cooked together1,927 recipes

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

  2. Corn + buttertop 14% of all pairs
    Smell alikemoderate
    Cooked together7,345 recipes

    Shared aroma: 2,3-pentanedione (butter, sweet).

  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

Corn starch
Thickens the filling as it boils, giving the custard body.
Egg
Helps set the filling and adds richness and structure.
Lemon juice
Provides the sharp acidity that defines the pie's flavor.
Sugar
Sweetens the filling and balances the lemon's tartness.
Butter
Adds richness and a smooth, glossy texture to the filling.

The step that matters

Let cool slightly before adding the egg. Adding beaten egg to a very hot starch mixture can scramble it or cause lumps. Cooling briefly lets the egg blend in smoothly and set evenly when baked.

Swap the lemon

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

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

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