Why it works: Flour and sugar 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 Rolls
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.
Make the batter
Beat the eggs and powdered sugar together until thick and creamy.
Gently fold in the flour.
Spread the mixture evenly on well-buttered baking sheets.
Bake and roll
Bake in a preheated oven at 400°F (200°C) until golden.
Remove from pans, spread with raspberry jam, and roll up.
Dust with powdered sugar before serving.
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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Flour + sugartop 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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Flour + raspberrytop 20% of all pairsSmell alikemoderateCooked together1,262 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Egg + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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Sugar + raspberrytop 21% of all pairsSmell alikelowCooked together3,101 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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 to trap air, giving the thin sponge its light, airy structure.
- Flour
- Provides the starch and gluten that set the sponge so it holds its shape when rolled.
- Powdered sugar
- Sweetens the sponge and helps the whipped eggs stay thick and stable.
- Raspberry jam
- Adds sweetness, acidity and moisture to the filling inside the rolled sponge.
The step that matters
Beat the eggs and powdered sugar until thick and creamy. The whipped eggs are the only leavening in this batter, so they must be beaten well to trap enough air. Under-beaten eggs give a dense, flat roll that cracks when rolled. Folding the flour gently preserves that air.
Swap the raspberry
How well each one fits the dish's main ingredients (egg, flour, sugar):
- Raisinfits better
- Vanillafits better
- Lemonfits better
- Raspberrythe original
Fit is the average pairing score against egg, flour, sugar. Candidates are from the same food group and used in at least 100 recipes.
“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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