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 Eoll
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. 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
Preheat the oven to 400°F (200°C).
Beat the eggs separately until fluffy.
Make and bake the batter
In a bowl, combine flour, powdered sugar, baking powder, and salt.
Add the beaten eggs and boiling water; mix until smooth.
Pour the batter into a large shallow pan.
Bake for about 10-15 minutes until golden.
Fill and roll
While hot, spread jelly over the top and roll it up quickly.
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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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
- Beaten eggs trap air, giving the thin sponge its light, rolled-up structure.
- Flour
- Provides the starch and gluten that set the sponge so it holds its shape.
- Powdered sugar
- Sweetens the sponge and adds fine sugar that helps it brown lightly as it bakes.
- Baking powder
- Releases gas in the batter, helping the sponge rise and stay tender.
- Jelly
- Adds sweetness and moisture to the filling inside the rolled sponge.
The step that matters
Roll the sponge while hot. Hot sponge is soft and flexible; once it cools, the starch and egg structure stiffen and it cracks when rolled. Rolling quickly keeps the jelly spread evenly.
“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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