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 ↓
Jelly Roll
Ingredients
Directions
The book gives no oven temperature. The 300°F (150°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the batter
Preheat the oven to 300°F (150°C).
In a bowl, mix flour, sugar, baking powder, and beaten eggs until well combined.
Pour the batter into a well-greased pan and bake until set.
Fill and roll
Prepare a smooth sheet of brown paper dusted with powdered sugar.
Turn the cake onto the sugared paper and quickly spread jelly over it.
Trim off the crusty edges with a sharp knife.
Roll the cake using the paper to help lift it.
To maintain the roll's shape, hang it up in a cloth.
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
- Beaten eggs provide structure and lift as the batter sets in the oven.
- Flour
- Forms the structure that holds the sponge together while it bakes.
- Sugar
- Sweetens the cake and helps it brown and stay tender.
- Baking powder
- Releases gas during baking so the cake rises and becomes light.
- Jelly
- Adds sweetness and moisture to the filling inside the rolled cake.
The step that matters
Turning and rolling the cake while warm. A hot sponge is soft and flexible, so it can be rolled without cracking. If it cools first, it becomes brittle and splits, so the cake should be turned onto the sugared paper and rolled promptly.
“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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