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 ↓
Simple Sponge Cake
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Preheat the oven to 400°F (200°C).
In a bowl, beat the eggs and sugar until light and fluffy.
Add the water, flour, baking powder, and lemon extract. Mix until smooth.
Bake
Pour the batter into a greased loaf pan.
Bake for 20 minutes or until a toothpick comes out clean.
For a jelly roll, pour the batter into a greased jelly roll pan.
Once baked, turn the cake upside down onto a clean towel.
Roll and cool
Remove the paper and spread with tart jelly.
Roll the cake tightly from one end, pressing the ends together.
Wrap it in the towel and let it cool on a pillow.
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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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).
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 with sugar, they trap air that gives the sponge its light structure.
- Sugar
- Beaten with the eggs, it helps create a fluffy foam and adds sweetness and tenderness.
- All-purpose flour
- Provides the starch and gluten that set the cake's structure as it bakes.
- Baking powder
- Releases gas during baking, helping the batter rise.
The step that matters
Beating the eggs and sugar until light and fluffy. This whipped foam supplies most of the cake's lift and airy crumb, so under-beating leaves a dense sponge. Folding in the flour gently afterward helps keep that air from collapsing.
Swap the lemon
How well each one fits the dish's main ingredients (egg, sugar, flour):
- Raisinfits better
- Vanillafits better
- Lemonthe original
- Figfits about as 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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