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 ↓
Jelly Roll
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 the batter
In a bowl, beat the eggs well.
Add cold water and sugar, mixing until combined.
Sift in the flour and baking powder, then mix until smooth.
Bake and roll
Pour the batter into a greased dripping pan and bake until golden.
Once baked, turn out the cake and spread with jelly.
Roll the cake up and dust with powdered sugar.
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 eggs trap air that gives the sponge its light, airy structure.
- Sugar
- Sweetens the cake and helps stabilise the whipped eggs in the batter.
- Flour
- Forms the cake's structure as it sets in the oven.
- Baking powder
- Releases gas in the oven, helping the cake rise and stay tender.
- Jelly
- Adds sweetness and moisture to the rolled cake's filling.
The step that matters
Sift in the flour and baking powder, then mix until smooth.. Mixing too vigorously after adding flour can knock out the air trapped in the eggs, leading to a flatter, denser roll that may crack when rolled. Gentle folding keeps the sponge light and flexible.
“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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