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. 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 the oven to 350°F (175°C).
Separate the yolks and whites of the eggs.
Make the batter
Beat the yolks until light and fluffy.
Gradually add the sugar to the yolks and mix well.
In a separate bowl, beat the egg whites until stiff peaks form.
Gently fold the beaten egg whites into the yolk mixture.
Sift the flour over the mixture and fold in gently.
Bake
Pour the batter into a greased loaf pan and bake for 25-30 minutes.
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 trap air and yolks add richness, giving the cake its structure and tender crumb.
- Sugar
- Sweetens the batter and helps stabilise the whipped yolks and whites.
- Flour
- Provides the starch that sets during baking to hold the cake's structure.
The step that matters
Folding the beaten egg whites into the yolk mixture. Egg whites hold air only when whipped to stiff peaks. Folding gently keeps that air in the batter; vigorous stirring deflates it, leading to a dense cake.
“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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