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 ↓
Roll Jelly Cake
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.
Prepare
Preheat the oven to 400°F (200°C).
Make and bake the batter
In a bowl, mix the flour, sugar, eggs, and baking powder until well combined.
Pour the batter into square baking tins.
Bake in the preheated oven until golden brown.
Finish
Turn the cake onto a flat surface, spread with jelly, and roll it up.
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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Flour + eggtop 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).
Flour and egg 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
- Provide structure and lift as they set, giving the sponge its body.
- Flour
- Forms the structure of the cake once it sets in the oven.
- Sugar
- Sweetens the cake and helps it brown during baking.
- Baking powder
- Releases gas in the batter, helping the cake rise and turn light.
- Jelly
- Adds sweetness and moisture to the filling inside the rolled cake.
The step that matters
Turn the cake onto a flat surface. The cake must be turned out and rolled while still warm and pliable. Once it cools fully it can crack when rolled, so the rolling step needs to happen promptly after baking.
“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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