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 Cake
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. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Prepare the batter
Preheat the oven to 350°F (175°C).
In a large bowl, beat the eggs and sugar until light and fluffy.
Gradually add the flour, baking powder, and salt, mixing well.
Stir in the water and flavoring until combined.
Bake and roll
Pour the batter into a greased baking pan and spread evenly.
Bake for 20-25 minutes or until a toothpick comes out clean.
Let cool, then spread with jelly and roll 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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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
- Whipped with sugar to trap air, giving the sponge its light, airy structure.
- Sugar
- Whipped with the eggs to stabilize foam and add sweetness and softness to the crumb.
- Flour
- Provides the starch and gluten network that sets the sponge into a flexible but sturdy structure.
- Baking powder
- Releases gas during baking so the batter rises and becomes tender.
- Water
- Adds moisture to the batter, keeping the thin sponge soft after baking.
The step that matters
Bake only until a toothpick comes out clean. Overbaking dries a thin sponge, making it brittle and prone to cracking when rolled. Stopping at the first clean toothpick keeps it moist and flexible enough to roll without breaking.
“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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