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Dessert

Boiled Sponge-cake

A sponge cake made by boiling sugar water, beating eggs, and folding in flour.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Sugar and flour are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 92,116 recipes. Both carry phenylacetaldehyde, which smells hawthorne, honey. The science ↓

Boiled Sponge-cake

Ingredients

Directions

Boil the syrup

  1. Boil ⅓ cup of water with the sugar until it reaches the feather stage.

Make the batter

  1. Beat the egg whites and yolks separately until well combined.

  2. Pour the boiling sugar mixture over the beaten eggs while stirring briskly.

  3. Continue to beat the mixture until it cools down.

  4. Gently fold in the flour until fully incorporated.

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 + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  2. Egg + flourtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

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

  4. Flour + winetop 28% of all pairs
    Smell alikelow
    Cooked together6,435 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Sugar + winetop 31% of all pairs
    Smell alikelow
    Cooked together9,581 recipes

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

Egg and flour barely smell alike, yet cooks put them together in 106,462 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

Eggs
Beaten eggs trap air, giving the cake its light, airy structure.
Sugar
Sugar sweetens the cake and, boiled to a syrup, helps the foam hold its shape.
Flour
Flour provides the structure that holds the cake together once set.

The step that matters

Pour the boiling sugar mixture over the beaten eggs while stirring briskly.. Pouring the hot syrup in a steady stream while beating spreads the heat and sugar evenly, which keeps the eggs from clumping or scrambling and preserves the air in the foam.

“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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