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Dessert

Orange Sponge

A gelatin-based orange dessert made with orange juice, sugar, gelatine, egg whites, and optional water and lemon.

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 Sponge

Ingredients

Directions

Prepare

  1. If using, mix the orange juice with the water.

  2. Melt the gelatine in a little water.

Make the sponge

  1. Combine the melted gelatine with the juice and sugar in a saucepan over low heat, stirring until dissolved.

  2. Cool the mixture, then beat in the egg whites until well combined.

  3. For added flavor, grate orange rind into the mixture and add lemon juice.

  4. Mould or pour into a dish and refrigerate until set.

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

Gelatine
Sets the liquid into a light, wobbly structure as it cools.
Egg whites
Whipped into the mixture to lighten it and give the sponge its airy texture.
Sugar
Sweetens the juice and balances its acidity.
Orange juice
Provides the main liquid and the citrus flavor.

The step that matters

Cool the mixture before beating in the egg whites. If the gelatine mixture is still hot, it can cook the egg whites and prevent them from incorporating smoothly. Cooling it first keeps the whites light and lets the foam hold its air.

Swap the lemon

The recipe marks lemon as optional. How well each one fits the dish's main ingredients (orange, sugar, egg):

  1. Vanillafits about as well
  2. Lemonthe original
  3. Figfits less well
  4. Pineapplefits less well

Fit is the average pairing score against orange, sugar, 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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