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Dessert

Orange Icing

A light orange icing made from powdered sugar, water, orange rind, juice, vinegar, and beaten egg whites.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Sugar and vinegar are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 20,806 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Orange Icing

Ingredients

Directions

Make the icing

  1. Boil the powdered sugar with water until it forms a string when dropped from a spoon.

  2. Add the grated rind and juice of the orange and vinegar, then stir well.

  3. Beat the mixture into the stiffly beaten egg whites.

Use

  1. Use for filling and icing both a delicate cake or an orange cake.

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. Sugar + vinegartop 15% of all pairs
    Smell alikemoderate
    Cooked together20,806 recipes

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

  2. Orange + vinegartop 20% of all pairs
    Smell alikemoderate
    Cooked together1,245 recipes

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

  3. Sugar + orangetop 20% of all pairs
    Smell alikelow
    Cooked together19,212 recipes

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

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

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

  5. Orange + eggtop 31% of all pairs
    Smell alikelow
    Cooked together10,696 recipes

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

Sugar and orange 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

Powdered sugar
Dissolves into the boiled syrup that gives the icing its sweetness and body.
Egg whites
Whipped to a stiff foam, they give the icing its light, airy structure.
Orange juice
Adds moisture and bright citrus acidity that cuts through the sweetness.
Orange rind
Contributes concentrated orange aroma and flavour from the peel's oils.
Vinegar
Acid that helps keep the egg white foam stable and the icing from weeping.

The step that matters

Boiling the sugar and water to a string. Sugar syrup must reach the right concentration; too little boiling leaves the icing runny, while overcooking makes it hard and brittle once it cools. The spoon string test checks this stage.

Swap the orange

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

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

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