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 Cakes
Ingredients
Directions
The book says “a very steady 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).
Line two cake tins with buttered paper, extending the paper above the rim.
Make the batter
Beat the yolks of the eggs in a bowl and the whites in a separate bowl until stiff peaks form.
Combine the yolks and whites, then add the whisky and grated lemon rind.
Sift in the sugar and beat until thick and white.
Fold and bake
Gently fold in the flour with a wooden spoon.
Half fill the tins with the mixture and bake for one hour.
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.
Photo for illustrative purposes only · Contact us to use it
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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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + lemontop 17% of all pairsSmell alikemoderateCooked together30,404 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Egg + lemontop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
Flour and egg 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, giving the sponge its light, risen structure.
- Flour
- Sets during baking to form the cake's structure and crumb.
- Sugar
- Sweetens the cake and helps the whisked eggs stay thick and stable.
- Lemon
- Grated rind adds a bright citrus aroma to the cake.
- Whisky
- Adds a warm aroma to the sponge.
The step that matters
Gently fold in the flour. The flour must be folded in gently so the air whisked into the eggs is not knocked out. Vigorous mixing deflates the batter and develops gluten, leading to a dense, tough sponge.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, flour, egg, whisky):
- Raisinfits better
- Vanillafits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against sugar, flour, egg, whisky. 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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