Why it works: Corn and lemon are a kitchen classic. They rank in the top 13% of all ingredient pairs, and cooks put them together in 1,927 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
Sponge Cake
Ingredients
Directions
The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the batter
In a bowl, stir the egg yolks and sugar for 15 minutes.
Beat the egg whites until stiff peaks form.
In another bowl, combine corn starch, baking powder, lemon juice, lemon rind, and salt.
Gently fold the egg yolk mixture into the dry ingredients, then fold in the egg whites.
Bake
Pour the batter into a greased cake pan.
Bake for 40 minutes at 300°F (150°C) without opening the oven.
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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Corn + lemontop 13% of all pairsSmell alikemoderateCooked together1,927 recipes
Shared aroma: 2-nonenal (fatty, 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).
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Egg + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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Sugar + corntop 21% of all pairsSmell alikelowCooked together7,168 recipes
Shared aroma: 2-nonenal (fatty, green).
Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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 to stiff peaks, they trap air that lifts and gives the cake its airy structure.
- Egg yolks
- Add richness and moisture, and help set the crumb as the cake bakes.
- Corn starch
- Gives a tender, fine crumb by thinning the flour-like structure of the batter.
- Baking powder
- Releases gas in the batter, helping the cake rise during baking.
- Sugar
- Sweetens the cake and helps stabilize the beaten egg mixture.
The step that matters
Fold the egg whites gently. Folding keeps the air beaten into the egg whites intact. Stirring or deflating them makes the batter dense and flat, so the cake rises less.
Swap the lemon
How well each one fits the dish's main ingredients (egg, sugar, corn):
- Vanillafits better
- Coconutfits about as well
- Raisinfits about as well
- Lemonthe original
Fit is the average pairing score against egg, sugar, corn. 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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