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 ↓
Rolled Jelly Cake
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.
Make the batter
Preheat the oven to 350°F (175°C).
Beat the egg yolks until light, then add the sugar.
Mix in the water and salt.
Gradually stir in the flour mixed with baking powder.
Bake
Pour the batter into well-greased long, shallow biscuit tins.
Bake until golden, then turn out onto a damp towel on a breadboard.
Roll
Spread jelly on top and roll up the cake while warm.
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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Egg + sugartop 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
- Eggs
- Whipped yolks trap air and form the light, sponge-like structure of the cake.
- Sugar
- Adds sweetness and helps hold air in the beaten eggs while keeping the crumb tender.
- All-purpose flour
- Its proteins set during baking to give the cake its structure.
- Baking powder
- Releases gas in the batter, helping the cake rise and become airy.
The step that matters
Roll the cake while warm. Once cooled, the sponge loses its flexibility and cracks when rolled. Rolling it warm lets the cake bend without breaking, so the jelly filling stays inside the roll.
“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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