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Dessert

Sponge Roll

A light sponge cake rolled with jelly or filling.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 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 ↓

Sponge Roll

Ingredients

Directions

The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.

Prepare

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

Make and bake the batter

  1. In a bowl, beat the eggs and sugar until very light.

  2. Add the flour, water, and baking powder, and beat rapidly until smooth.

  3. Pour the mixture into a baking pan and bake for about 10-15 minutes.

Roll and fill

  1. Turn the baked sponge onto a clean cloth.

  2. Spread with jelly or your preferred filling while warm.

  3. Roll the sponge up carefully.

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. 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 with sugar to trap air, giving the sponge its light, airy structure.
Sugar
Whipped with the eggs to stabilise foam and add sweetness and tenderness.
Flour
Provides the starch and gluten that set the sponge's structure as it bakes.
Baking powder
Releases gas in the batter, helping the sponge rise in the oven.

The step that matters

Rolling the warm sponge. Rolling while the sponge is still warm keeps it flexible so it does not crack. Once cooled, the set crumb loses flexibility and tears easily.

“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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