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 says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 350°F (175°C).
Sift the baking soda and cream of tartar into the flour four times.
Make the batter
Add salt to the eggs and beat until light.
Gradually add the sugar while beating until foamy.
Fold in the flour mixture gently.
Pour the batter into a prepared baking pan 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 + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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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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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
- Eggs
- Trap air when beaten, giving the cake its light, risen structure.
- Flour
- Forms the structure that holds the cake together once baked.
- Sugar
- Sweetens the cake and helps stabilize the beaten egg foam.
- Baking soda
- Reacts with the acid in the batter to release gas that makes the cake rise.
- Cream of tartar
- Adds acid that stabilizes the egg foam and works with the baking soda to aid rising.
The step that matters
Fold in the flour mixture gently. The cake's rise depends on air beaten into the eggs. Stirring vigorously deflates that foam, while gentle folding keeps the air trapped so the cake bakes up 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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