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.
Make the batter
Beat the eggs for 30 minutes until fluffy.
Gradually add the sugar while continuing to beat.
Sift the flour and baking powder together.
Fold the flour mixture into the egg and sugar mixture gently.
Bake
Pour the batter into a greased cake pan.
Bake at 350°F (175°C) until golden and 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
- Whipped to trap air, giving the sponge its light, airy structure.
- Sugar
- Sweetens the cake and helps stabilise the whipped egg foam.
- Flour
- Provides the starch and gluten that set the cake's structure as it bakes.
- Baking powder
- Releases gas in the heat, helping the batter rise in the oven.
The step that matters
Folding the flour mixture into the egg and sugar mixture gently. Whipped eggs hold their air only while the batter is handled lightly. Vigorous stirring knocks out the trapped air and gluten development makes the cake dense and tough.
“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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