Why it works: Sugar and cream are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 43,450 recipes. Both carry 2,3-butanedione, which smells butter, sweet. 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. 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 and sugar until light and fluffy.
Sift together the flour, cream of tartar, and baking soda.
Make and bake the batter
Gradually add the dry ingredients to the egg mixture, alternating with the milk.
Spread the batter evenly in a greased baking pan.
Bake for 10–12 minutes or until golden.
Roll and serve
Remove from the oven and spread with jelly while still warm.
Roll the cake using a clean towel, starting from one end.
Sprinkle the top with powdered sugar before serving.
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 + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
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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Milk + curranttop 16% of all pairsSmell alikelowCooked together5,475 recipes
Shared aroma: isoamyl acetate (banana, pear).
Flour and milk barely smell alike, yet cooks put them together in 78,219 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.
- All-purpose flour
- Provides the starch and gluten framework that sets the cake's crumb.
- Sugar
- Sweetens the cake and helps whip the eggs into a stable, fluffy foam.
- Cream of tartar
- Acidifies the batter, stabilising the egg foam and helping the leavening react.
- Baking soda
- Reacts with the acid in the batter to produce gas that lifts the cake.
- Rich milk
- Adds moisture and richness, tenderising the crumb and aiding browning.
The step that matters
Roll the cake while still warm. Warm sponge is flexible, so it bends without cracking. As it cools, the structure stiffens and rolling tears the surface, so the roll must be made promptly after the jelly is spread.
Swap the currant
How well each one fits the dish's main ingredients (egg, flour, sugar, cream, milk):
- Vanillafits better
- Raisinfits better
- Figfits better
- Currantthe original
Fit is the average pairing score against egg, flour, sugar, cream, milk. Candidates are from the same food group and used in at least 100 recipes.
“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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