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Dessert

Delicate Pie

A lemon custard pie made with corn starch, egg, lemon rind and juice, baked between two pie crusts.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 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 ↓

Delicate Pie

Ingredients

Directions

Make the filling

  1. Dissolve corn starch in cold water.

  2. Add boiling water and let cool.

  3. Mix in egg, lemon rind, lemon juice, salt, and sugar.

Bake

  1. Pour filling between two pie crusts.

  2. Bake until golden brown.

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

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

  3. Egg + lemontop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

  4. Egg + sugartop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

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

  5. Corn + sugartop 21% of all pairs
    Smell alikelow
    Cooked together7,168 recipes

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

Lemon and sugar 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

Corn starch
Thickens the filling as it heats, giving the custard a smooth, sliceable body.
Egg
Sets the custard as it bakes, adding richness and structure to the filling.
Lemon (rind and juice)
Provides the sharp acidity and aroma that define the pie's flavour.
Sugar
Sweetens the tart lemon filling and helps balance its acidity.

The step that matters

Letting the starch mixture cool before adding the egg. Cornstarch thickens when heated, and the egg proteins set with heat. Adding the egg to a very hot mixture can scramble it and leave lumps, so the starch base should cool first.

Swap the lemon

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

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

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