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Dessert

Orange Custard Pie

A custard pie flavored with orange and lemon, baked in a pie crust.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Lemon and orange match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Orange Custard Pie

Oven, in the book's wordsA slow oven

Ingredients

Directions

The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

  1. Preheat the oven to 300°F (150°C).

  2. In a bowl, stir together the sugar, flour, and salt.

Make the custard

  1. Add the grated rind and juice of the orange and lemon, along with the beaten yolks of the eggs and the milk.

  2. Fold in the stiffly beaten egg whites.

Bake

  1. Pour the mixture into a pie crust and bake for 30 to 35 minutes.

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. Lemon + orangetop 1% of all pairs
    Smell alikestrong
    Cooked together10,634 recipes

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

  2. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  4. Lemon + milktop 15% of all pairs
    Smell alikemoderate
    Cooked together19,053 recipes

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

  5. Flour + eggtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Flour and milk barely smell alike, yet cooks put them together in 78,219 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

Eggs
Yolks thicken the custard and whites, folded in stiffly beaten, give it a light, airy texture.
Flour
Stabilizes the filling and helps it set smoothly without becoming grainy.
Sugar
Sweetens the filling and balances the sharpness of the citrus.
Milk
Adds moisture and richness, forming the body of the custard.
Orange and lemon
Juice and grated rind add acidity and bright citrus aroma.

The step that matters

Fold in the stiffly beaten egg whites. Whites hold air only when whipped stiff; folding gently preserves that air so the filling stays light rather than deflating. Overmixing knocks out the foam and makes the pie dense.

Swap the orange

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

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

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