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 ↓
Rolled Jelly Cake
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 the batter
Preheat the oven to 400°F (200°C).
Beat the egg yolks and whites separately.
In a bowl, combine the sugar, flour, baking powder, and salt.
Mix in the beaten egg yolks, then add the boiling water last.
Spread the batter thinly in a large roasting pan.
Bake and roll
Bake for 10 minutes until done.
While still hot, spread with acid jelly and roll carefully from one side.
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 and folded in, they lighten the batter and give the sponge its airy structure.
- Flour
- Its proteins form the gluten network that gives the cake structure and holds it together.
- Sugar
- Sweetens the cake and helps keep it tender and moist.
- Baking powder
- Releases gas in the oven, helping the thin batter rise and stay light.
- Acid jelly
- Adds sweetness and tartness and moisture to the filling inside the rolled cake.
The step that matters
Rolling while hot. The cake must be rolled while still warm and flexible, because cooled sponge becomes brittle and cracks when rolled. Rolling gently keeps the spread jelly even and the roll intact.
“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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