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Dessert

Swiss Roll

A rolled sponge cake with jam filling.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Flour and milk are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 78,219 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Swiss 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 the batter

  1. Sift the flour and baking powder together.

  2. Whisk the eggs and sugar until creamy.

  3. Gently fold in the flour mixture, adding a little milk if necessary.

Bake and roll

  1. Pour the batter into a greased baking tin and bake at 400°F (200°C) for 8 to 10 minutes.

  2. Turn the cake out upside down onto sugared paper.

  3. Spread the warm jam over the cake and roll it up.

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 + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

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

    Shared aroma: isobutyraldehyde (malty, green).

  4. Egg + milktop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

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

  5. Sugar + milktop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

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

Flour and milk barely smell alike, yet cooks put them together in 78,219 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
Whisked into a foam that traps air and gives the sponge its light, springy structure.
Flour
Forms the gluten network that sets the cake's structure once baked.
Castor sugar
Whisks with the eggs to stabilise the foam and adds sweetness and tender browning.
Baking powder
Releases gas in the batter, helping the sponge rise in the oven.
Jam
Adds sweetness and moisture in the filling, and its warmth keeps the cake pliable for rolling.

The step that matters

Gently fold in the flour mixture. Folding rather than stirring keeps the air whisked into the eggs. Overmixing knocks out that air and develops gluten, producing a dense, tough roll that cracks 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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