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 says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure. The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Prepare
Preheat the oven to 400°F (200°C).
Make and bake the cake
In a bowl, mix flour, sugar, and baking powder.
Add eggs and beat until smooth.
Pour the batter into a square pan.
Bake for 10-15 minutes until golden.
Roll
Spread jelly over the cake 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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Egg + sugartop 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
- Bind the batter and add structure and lift as the cake sets.
- Flour
- Forms the main structure of the cake as the batter sets in the oven.
- Sugar
- Adds sweetness and helps the cake brown as it bakes.
- Baking powder
- Releases gas in the batter to make the cake rise and stay light.
- Jelly
- Adds sweetness and moisture to the filling inside the rolled cake.
The step that matters
Roll the cake while it is still warm. Rolling a warm sponge-style cake keeps it flexible so it bends without cracking. Once it cools, the cake stiffens and is more likely to split 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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