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 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.
Make the syrup
Cook sugar with water until it forms a thick syrup.
Let the syrup cool.
Mix and bake
Pour the cooled syrup over the well-beaten yolks of the eggs.
Fold in the flour.
Gently fold in the beaten egg whites and flavoring.
Bake quickly in layers or in a sheet pan at 400°F (200°C).
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 whites trap air that lifts the cake, and the yolks add richness and structure.
- Flour
- Provides the structure that holds the cake's airy crumb once baked.
- Sugar
- Adds sweetness and helps keep the crumb soft and moist.
- Baking powder
- Releases gas in the oven, helping the cake rise and become light.
The step that matters
Gently fold in the beaten egg whites. The whites hold the air that makes the sponge rise. Stirring or beating them hard knocks out those bubbles, 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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