Skip to main content
Dessert

Lemon Pie

A lemon custard filling baked in a pie crust.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
Jump to recipe ↓

Why it works: Butter and lemon are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 41,227 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Lemon Pie

Ingredients

Directions

Make the filling

  1. In a saucepan, mix sugar and cornstarch.

  2. Add boiling water and stir until smooth.

  3. Cook over medium heat until thickened, stirring constantly.

  4. Remove from heat and stir in lemon juice, grated rind, and butter.

  5. Allow to cool slightly, then add egg yolks, mixing well.

Assemble and set

  1. Pour filling into a pie crust and let it set before serving.

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

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

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

    Shared aroma: decanal (soap, orange peel).

  3. Sugar + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

  4. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

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

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

Sugar and lemon 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

Cornstarch
Thickens the filling into a firm, sliceable custard as it cooks and becomes hot.
Egg yolks
Add richness and help the filling set into a creamy custard.
Lemon juice
Provides the sharp acidity that defines the lemon flavour.
Sugar
Sweetens the filling and balances the acidity of the lemon.
Butter
Adds fat for a smoother, richer mouthfeel and a silkier texture.

The step that matters

Adding the egg yolks after cooling slightly. If the filling is too hot when the yolks go in, they can scramble and become grainy. Letting it cool slightly first lets the yolks blend in smoothly and thicken gently.

Swap the lemon

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

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

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

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