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 or Baked Pancake
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
Mix powdered sugar with the yolks of 4 eggs until light.
Add ½ pound of flour and fold in the beaten egg whites.
Line a dish with oiled paper.
Sift sugar thickly inside the lined dish.
Pour in the batter.
Sift more sugar on top of the batter.
Bake and serve
Bake for about 7 minutes at 400°F (200°C).
Spread with jam, roll it up, and serve hot or cold, cut into slices.
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.
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + eggtop 21% of all pairsSmell alikemoderateCooked 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
- Egg yolks
- Enrich the batter with richness and help it set tender and moist.
- Egg whites
- Beaten and folded in, they trap air and give the batter lift.
- Flour
- Provides structure so the sponge holds its shape when rolled.
- Powdered sugar
- Sweetens the sponge and helps it brown lightly on the surface.
The step that matters
Fold in the beaten egg whites. Folding gently keeps the air in the beaten whites. Stirring hard deflates the batter, leaving a dense 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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