Why it works: Flour and milk are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 78,219 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Rolled Jelly 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 bowl, beat the eggs and sugar until light and fluffy.
Sift in the flour and baking powder, mixing until combined.
If the batter is too thick, thin it with a little sweet milk.
Bake and roll
Pour the batter into a greased dripping pan and spread evenly.
Bake for about 15-20 minutes or until golden brown.
Remove from the oven, spread jelly over the top, and roll the cake 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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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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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 + milktop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
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Sugar + milktop 18% of all pairsSmell alikelowCooked together77,875 recipes
Shared aroma: 2-nonenal (fatty, green).
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
- Beaten with sugar to trap air, giving the sponge its light, airy structure.
- Sugar
- Whipped with the eggs to stabilise foam and add sweetness and tender texture.
- Flour
- Forms the cake's structure once set by heat, holding the rolled sponge together.
- Baking powder
- Releases gas in the batter, helping the cake rise and stay light.
- Jelly for spreading
- Adds sweetness, moisture and a fruity flavour inside the rolled cake.
The step that matters
Rolling the cake while warm. Rolling too late lets the sponge cool and stiffen, causing cracks. Rolling it soon after baking, with a jelly layer, keeps it flexible enough to curl 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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