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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

Whisk the base

  1. In a bowl, beat the egg yolks, sugar, flour, and grated orange rind until light.

Cook and finish

  1. Gradually add the boiling milk, stirring continuously over low heat until thickened, being careful not to curdle.

  2. Remove from heat and stir in the curaçao.

  3. Beat the mixture 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
Thicken the sauce as they set with gentle heat, giving it a rich, smooth body.
Sugar
Sweetens the sauce and helps balance the richness of the yolks and milk.
Flour
Stabilises the custard so it thickens more evenly and resists curdling.
Milk
Forms the liquid base that the yolks thicken into a creamy sauce.
Curaçao
Adds orange flavour and aroma to the finished sauce.

The step that matters

Adding the boiling milk and cooking gently. Egg yolks thicken when their proteins set, but too much heat or too little stirring can make them scramble and curdle. Adding the hot milk slowly, stirring constantly over low heat, keeps the custard smooth and evenly thickened.

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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