Why it works: Sugar and cream are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 43,450 recipes. Both carry 2,3-butanedione, which smells butter, sweet. The science ↓
Sponge Cake
Ingredients
Directions
The book says “a moderate 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).
Make the batter
Beat the eggs for 2 minutes.
Add the sugar and beat for 5 more minutes.
Stir in the cream of tartar and 2 cups of flour.
Beat for 1 minute.
Dissolve the baking soda in the water and stir it in.
Grate the lemon rind.
Squeeze in half the juice.
Add the remaining 2 cups of flour.
Beat for 1 minute.
Bake
Pour the batter into deep pans.
Bake until golden.
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 + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
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).
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
- Beaten eggs trap air that gives the cake its light structure and rise.
- All-purpose flour
- Its proteins set during baking to form the cake's structure.
- White sugar
- Adds sweetness and helps keep the crumb moist and tender.
- Cream of tartar
- Adds acidity that stabilizes the beaten eggs and works with the baking soda.
- Baking soda
- Reacts with the acid in the batter to produce gas that helps the cake rise.
- Lemon
- Its juice and rind add acidity and fresh aroma.
The step that matters
Keep the batter airy. Beaten eggs hold the air that lifts a sponge. Beating too long after the flour goes in can knock out that air and toughen the crumb, so mix only as long as the method says.
Swap the lemon
How well each one fits the dish's main ingredients (flour, sugar, egg, cream):
- Raisinfits better
- Vanillafits better
- Figfits about as well
- Lemonthe original
Fit is the average pairing score against flour, sugar, egg, cream. 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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