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Dessert

Sponge Roll

A light, airy cake made from flour, sugar, eggs, baking powder, and cold water, baked into a roll.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Flour and sugar 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 ↓

Sponge Roll

Oven, in the book's wordsA hot oven

Ingredients

Directions

The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

  1. Preheat the oven to 400°F (200°C).

Make the batter

  1. Beat the eggs and sugar until stiff and frothy.

  2. Sift the flour and baking powder together.

  3. Add the cold water to the egg and sugar mixture.

  4. Gently stir in the sifted flour and baking powder until combined.

Bake

  1. Pour the batter into a greased tin.

  2. Bake for 8 to 10 minutes.

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  2. Flour + eggtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

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

Flour and egg 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
Whipped to a stiff foam, they trap air that gives the sponge its light structure.
Flour
Provides the set structure once heated, holding the sponge's airy crumb in place.
Sugar
Whipped with the eggs to stabilise the foam and add sweetness and gentle browning.
Baking powder
Releases gas in the oven, helping the batter rise and lighten.

The step that matters

Gently stir in the sifted flour and baking powder. Folding rather than beating keeps the air whipped into the egg foam. Overmixing knocks out bubbles, so the sponge bakes up dense instead of light.

“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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