Why it works: Sugar and vanilla are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 35,032 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓
Sponge Cake
Ingredients
Directions
Make the batter
Beat the egg whites until very stiff.
Gradually add the powdered sugar and beat for 10 minutes.
In a separate bowl, beat the egg yolks until light and creamy.
Add the vanilla extract to the yolks and stir into the egg whites.
Quickly mix in the sifted pastry flour and baking powder.
Add the boiling water and stir until combined.
Bake and serve
Pour the batter into a buttered and floured cake tin.
Sift powdered sugar over the top and drizzle a little cream to moisten the sugar.
Bake for about 30 minutes.
Turn out onto a cake cooler and, when ready to serve, cut through the crust and tear apart.
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 + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Vanilla + flourtop 12% of all pairsSmell alikemoderateCooked together19,241 recipes
Shared aroma: isobutyraldehyde (malty, green).
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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).
Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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 a stiff foam that gives the cake its light, airy structure.
- Egg yolks
- Add richness and tenderness to the batter.
- Powdered sugar
- Sweetens the cake and helps stabilise the whipped egg white foam.
- Pastry flour
- Provides a light, delicate structure that sets the crumb.
- Baking powder
- Releases gas in the batter to help the cake rise.
The step that matters
Quickly mix in the sifted pastry flour and baking powder. Whipped egg white foam deflates easily when overmixed. Folding the flour in quickly and gently keeps the air bubbles that make the sponge light.
Swap the vanilla
How well each one fits the dish's main ingredients (egg, sugar, flour):
- Raisinfits better
- Vanillathe original
- Lemonfits less well
- Figfits less well
Fit is the average pairing score against egg, sugar, flour. Candidates are from the same food group and used in at least 100 recipes.
“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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