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 ↓
Boll Jelly Cake
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat your oven to 400°F (200°C).
Make the batter
In a bowl, beat the eggs and sugar together until well combined.
Add the water, flour, and baking powder, mixing until smooth.
Pour the batter into a greased dripping pan and bake for about 6 minutes.
Roll and cool
Once baked, turn the cake out onto a clean towel.
Spread jelly over the cake while it is still hot.
Roll the cake up in the towel and let it cool.
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).
-
Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
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 with sugar to trap air, giving the sponge its light structure.
- Sugar
- Whipped with the eggs for volume and adds sweetness and tenderness to the cake.
- Flour
- Sets with the egg structure to form the cake's body once baked.
- Baking powder
- Releases gas in the batter, helping the sponge rise and stay airy.
The step that matters
Roll the cake while it is still hot. Warm sponge is flexible, so it can be rolled without cracking. Once it cools, the cake stiffens and tears, and the jelly filling is harder to 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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