Skip to main content
Dessert

Lemon Pie

A pie with a lemon filling made from grated rind, juice, sugar, water, egg, flour, and butter.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
Jump to recipe ↓

Why it works: Flour and butter are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Lemon Pie

Oven, in the book's wordsA slow oven

Ingredients

Directions

  1. Combine the grated rind and juice of the lemon, sugar, water, egg, flour, and butter in a saucepan.

  2. Cook over medium heat until the mixture thickens.

  3. Pour the filling between two pie crusts and bake until golden.

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

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

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

    Shared aroma: isobutyraldehyde (malty, green).

  4. Lemon + buttertop 16% of all pairs
    Smell alikemoderate
    Cooked together41,227 recipes

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

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

Lemon
Supplies the tart flavour and aroma that define the filling.
Sugar
Sweetens the filling and balances the sharpness of the lemon.
Egg
Its proteins set on heating, helping the filling firm up.
Flour
Its starch swells when heated, thickening the filling.
Butter
Adds richness and a smooth mouthfeel to the filling.

The step that matters

Cook over medium heat until the mixture thickens. Flour starch swells and the egg proteins set as the mixture heats, which thickens the filling. Heat that is too high can scorch the sugar or curdle the egg, so keep the heat moderate and stir the mixture while it cooks.

Swap the lemon

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

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

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

More lemon pie recipes

Filling 23Apple 11Raisin 4 See all 602 →

You might also like

Lemon CakeLemon Cake228 recipesLemon IceLemon Ice147 recipesLemon SherbetLemon Sherbet103 recipesLemon CustardLemon Custard64 recipes