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 says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 400°F (200°C).
Grease a pan and dust it with flour, tapping out the excess.
Make the batter
Beat the egg yolks slightly, then add the sugar and beat hard.
Add the cold water, flour, baking powder, and any flavoring, mixing well.
Gently fold in the stiffly beaten egg whites.
Bake
Pour the batter into the prepared pan and bake until the cake leaves the sides of the pan.
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 give the sponge its light, airy structure.
- Flour
- Provides the starch and gluten framework that sets the crumb once baked.
- Granulated sugar
- Beaten with the yolks to add sweetness and help build a stable, fine texture.
- Baking powder
- Releases gas in the batter, helping the cake rise in the oven.
The step that matters
Folding in the egg whites. Folding gently keeps the air trapped in the stiffly beaten whites. Stirring or deflating them makes the batter dense and the cake rise poorly.
“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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