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 ↓
Sponge Jelly Cake
Ingredients
Directions
The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 400°F (200°C).
Beat the egg whites until stiff peaks form.
Make the batter and bake
In a separate bowl, mix the egg yolks and sugar until creamy.
Sift the flour and baking powder together, then add to the yolk mixture.
Stir in the boiling water until well combined.
Gently fold in the beaten egg whites.
Pour the batter into jelly tins and bake until golden.
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
- Whites trapped as stiff foam give the cake its light, airy structure, while yolks add richness.
- Sugar
- Sweetens the batter and, creamed with yolks, helps give a tender crumb.
- Flour
- Provides the starch and protein that set into the cake's structure as it bakes.
- Baking powder
- Releases gas in the batter, helping the cake rise in the oven.
- Boiling water
- Adds moisture and loosens the batter so it bakes evenly and stays tender.
The step that matters
Gently fold in the beaten egg whites. The whites hold air that makes the cake light. Stirring vigorously or for too long knocks out that air, so the cake bakes up dense and flat.
“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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