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Dessert

Sponge Roll

A light sponge cake rolled with jelly, dusted with sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 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 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare the batter

  1. Preheat the oven to 350°F (175°C).

  2. Beat the egg yolks and sugar together until light.

  3. Add the flour and a little baking powder, then fold in the stiffly beaten egg whites.

  4. Pour the batter into a large pan and bake until done.

Roll and cool

  1. Once baked, place a greased piece of brown paper sprinkled with sugar on a surface.

  2. Turn the cake out onto the paper, spread with jelly, and roll it up quickly.

  3. Cool the rolled cake in the paper.

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).

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
Whipped whites give the sponge its light, airy structure, and the yolks add richness.
Sugar
Sweetens the cake and helps the beaten eggs hold air while the batter is mixed.
Flour
Provides the structure that sets the sponge once baked, letting it hold its shape when rolled.
Baking powder
Releases gas in the batter so the sponge rises and stays tender.
Jelly
Adds sweetness and moisture to the filling and helps the rolled cake hold together.

The step that matters

Fold in the stiffly beaten egg whites. Folding gently keeps the air trapped in the whites, which is what makes the sponge light. Stirring vigorously deflates the foam and produces a dense cake.

“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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