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Dessert

Swiss Roll

A rolled sponge cake filled with jam.

From an old cookbook · modernised transcription
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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 ↓

Swiss Roll

Oven, in the book's wordsA sharp oven

Ingredients

Directions

The book says “a sharp 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).

  2. Grease a clean piece of parchment paper, one foot square, and place it on a baking tin.

Make the batter

  1. In a bowl, break the eggs and add the sugar.

  2. Beat until the sugar is dissolved, about ten minutes.

  3. Stir in the flour and baking powder until combined.

  4. Pour the mixture onto the prepared paper and spread it evenly.

  5. Bake for eight minutes until set.

Roll and serve

  1. Remove from the oven and place on a board.

  2. Carefully peel off the paper.

  3. Spread a thin layer of jam over the cake.

  4. Roll it up tightly.

  5. Trim the ends with a sharp knife.

  6. Serve immediately.

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 with sugar to trap air, giving the sponge its light, airy structure.
Sugar
Dissolves into the eggs to stabilise the foam and add sweetness.
All-purpose flour
Provides starch that sets during baking, giving the sponge its structure.
Baking powder
Releases gas during baking to help the sponge rise slightly.
Jam
Adds moisture and sweetness inside the rolled sponge.

The step that matters

Beat the eggs and sugar until fully dissolved. Whisking eggs with sugar builds a stable foam of trapped air. If the sugar is not fully dissolved or the foam collapses, the sponge bakes dense and may crack when rolled.

“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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