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 ↓
Common Jelly-roll Sponge
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).
In a large bowl, beat together the sugar and eggs until well combined.
Gradually add the warm water while continuing to beat the mixture.
In a separate bowl, mix the baking powder with the flour.
Combine the flour mixture with the egg and sugar mixture until smooth.
Bake and roll
Spread the batter onto parchment paper in a baking pan.
Bake in the preheated oven until golden brown.
Once baked, wet the paper, spread your jelly over the sponge, and roll it up carefully.
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
- Eggs
- Trap air and set into the sponge's structure as they heat.
- Sugar
- Sweetens the sponge and helps the beaten eggs hold air.
- Flour
- Forms the sponge's main structure as its starch sets during baking.
- Baking powder
- Releases gas when heated, making the sponge rise and stay light.
- Warm water
- Adds moisture and loosens the batter so it spreads evenly.
The step that matters
Combine the flour mixture with the egg and sugar mixture until smooth. Once flour is added, overbeating develops gluten and knocks out the air beaten into the eggs. The sponge then bakes tough and dense, and it may crack 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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