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Dessert

China Orange Custard

A custard made with China oranges, sugar, eggs, and cornstarch, thickened in water and finished with a meringue topping.

From an old cookbook · modernised transcription
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Why it works: Orange and sugar are a kitchen classic. They rank in the top 20% of all ingredient pairs, and cooks put them together in 19,212 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

China Orange Custard

Ingredients

Directions

Make the custard

  1. Boil the water and add the moistened cornstarch.

  2. Stir until it thickens.

  3. Add the beaten egg yolks, sugar, and orange juice.

  4. Stir for one minute.

Finish and serve

  1. Pour the mixture into a glass dish or sherbet glasses.

  2. Make a meringue with the egg whites, flavoring it with orange juice and grated orange peel.

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 + sugartop 20% of all pairs
    Smell alikelow
    Cooked together19,212 recipes

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

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

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

  3. Egg + orangetop 31% of all pairs
    Smell alikelow
    Cooked together10,696 recipes

    Shared aroma: 2,4-decadienal (seaweed).

Orange and sugar barely smell alike, yet cooks put them together in 19,212 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 liquid into a smooth custard as it heats.
Eggs
Egg yolks enrich and thicken the custard, while whites form the meringue.
Sugar
Adds sweetness and balances the tartness of the orange juice.
China oranges
Supply juice for flavor and grated peel for aroma.

The step that matters

Stir the cornstarch mixture until it thickens. Cornstarch must be fully heated in liquid for its starch granules to swell and thicken the custard. Stopping too early leaves it thin, while overheating or scorching can make it lumpy or pasty.

Swap the orange

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

  1. Vanillafits better
  2. Raisinfits better
  3. Lemonfits better
  4. Orangethe original

Fit is the average pairing score against 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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