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Dessert

Orange Filling for Cake

A sweet orange custard-like filling made with oranges, sugar, cornstarch, egg yolk, boiling water, lemon extract, and folded egg white.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Orange and lemon 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 Filling for Cake

Ingredients

Directions

Make the filling

  1. In a saucepan, combine the oranges, cornstarch, egg yolk, sugar, and boiling water.

  2. Boil the mixture for three minutes.

  3. Remove from heat and flavor with lemon extract.

Finish the filling

  1. Whip the egg white until stiff and fold it into the mixture after it has cooled.

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. Orange + lemontop 1% of all pairs
    Smell alikestrong
    Cooked together10,634 recipes

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

  2. Sugar + lemontop 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. Orange + sugartop 20% of all pairs
    Smell alikelow
    Cooked together19,212 recipes

    Shared aroma: beta-damascenone (apple, rose).

  5. Sugar + eggtop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

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

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 as it boils, giving it a spoonable body.
Egg yolk
Adds richness and helps thicken the custard-like filling.
Egg white
Whipped and folded in, it lightens the texture of the filling.
Sugar
Sweetens the filling and balances the tartness of the oranges.

The step that matters

Folding in the egg white after cooling. If the mixture is still hot, the whipped egg white will deflate and lose its airy volume. Letting it cool first keeps the foam intact and the texture light.

Swap the orange

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

  1. Orangethe original
  2. Vanillafits about as well
  3. Limefits less well
  4. Raisinfits less well

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