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 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Separate the eggs and beat the whites until stiff.
Make the batter
In a large bowl, mix the sugar and flavoring, then add the beaten egg whites and mix well.
In another bowl, combine the flour and baking powder, then add the yolks and mix until smooth.
Gradually add the flour mixture to the egg mixture, then stir in the boiling water.
Bake
Pour the batter into a greased pan and bake in a moderate oven at 350°F (175°C) 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
- Whipped whites give the sponge its light, airy structure, and yolks add richness.
- Flour
- Provides the set structure that holds the risen batter after baking.
- Baking powder
- Releases gas in the batter, helping the cake rise.
- White sugar
- Sweetens the cake and helps stabilize the beaten egg whites.
The step that matters
Folding in the flour mixture. Adding the flour gradually and mixing gently keeps the air from the beaten egg whites, so the cake stays light rather than dense.
“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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