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Dessert

Orange Sauce

A custard-like sauce made with egg yolks, sugar, flour, orange rind, milk, and curaçao.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Flour and milk are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 78,219 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Orange Sauce

Ingredients

Directions

Make the custard

  1. Beat the egg yolks, sugar, flour, and grated orange rind until light.

  2. Add the boiling milk.

  3. Stir over heat until thick, ensuring it does not curdle.

  4. Remove from heat.

Finish

  1. Add the curaçao.

  2. Beat until light and foaming.

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 + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 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. Orange + milktop 15% of all pairs
    Smell alikemoderate
    Cooked together4,696 recipes

    Shared aroma: 1-octen-3-one (mushroom, metallic).

  5. Egg + milktop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

    Shared aroma: 2-nonenal (fatty, 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

Egg yolks
Proteins set when heated, thickening the sauce and giving it a rich body.
Sugar
Adds sweetness and helps the yolks beat to a light, stable foam.
Flour
Starch thickens the sauce and helps it hold together against curdling.
Milk
Supplies the liquid base and creamy texture of the sauce.
Orange rind
Contributes fragrant orange oil, giving the sauce its citrus aroma.
Curaçao
Adds orange-liqueur flavour and aroma to the finished sauce.

The step that matters

Stir over heat until thick, without curdling. Egg yolk proteins set when heated and thicken the sauce, but too much heat makes them tighten and separate into curds. Stir constantly and remove from the heat as soon as it thickens.

Swap the orange

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

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

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