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 says “a rather 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).
Separate the egg whites and yolks.
Make the batter
Beat the egg whites until stiff peaks form.
In another bowl, beat the egg yolks with sugar until light and fluffy.
Gently fold the egg whites into the yolk mixture.
Sift the flour, salt, and baking powder together, then fold into the batter.
Pour the batter into a greased cake pan.
Bake
Bake for 20-25 minutes or until a toothpick comes out clean.
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 by beating build the airy structure, and yolks add richness and colour.
- Sugar
- Beaten with the yolks, it sweetens the cake and helps create a light, fluffy texture.
- All-purpose flour
- Its proteins set during baking, giving the sponge its firm crumb structure.
- Baking powder
- Releases gas in the heat, helping the cake rise and stay light.
The step that matters
Folding the egg whites into the yolk mixture. Beaten whites hold air that gives the sponge its lift. Stirring or mixing vigorously knocks this air out, leaving a dense cake. Fold gently with a large spatula, cutting through and turning the mixture over.
“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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