Why it works: Sugar and cream are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 43,450 recipes. Both carry 2,3-butanedione, which smells butter, sweet. 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. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Prepare
Preheat your oven to 350°F (175°C).
Make the batter
In a bowl, beat the egg whites until soft peaks form.
Gradually add cream of tartar and continue beating until stiff peaks form.
In another bowl, mix the egg yolks, sugar, and salt until well combined.
Gently fold the flour into the yolk mixture.
Carefully fold in the beaten egg whites and flavoring until just combined.
Bake
Pour the batter into a greased cake pan and bake for 25-30 minutes or 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 + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Flour + sugartop 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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Flour + creamtop 20% of all pairsSmell alikemoderateCooked together30,481 recipes
Shared aroma: acetaldehyde (pungent, ethereal).
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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
- Egg whites
- Whipped into foam that traps air, giving the cake its light, airy structure.
- Egg yolks
- Add richness and fat, softening the crumb and adding color and flavor.
- Flour
- Provides the starch and protein that set the cake's structure as it bakes.
- Sugar
- Sweetens the batter and helps keep the cake tender and moist.
- Cream of tartar
- Stabilizes the whipped egg whites, helping them hold their peaks.
The step that matters
Folding the beaten egg whites into the batter. Whipped whites hold the air that makes the cake rise. Stirring vigorously or folding too long deflates the foam, leaving a dense cake. Fold gently, just until combined.
“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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