Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓
Sponge Cake
Ingredients
Directions
The book says “a rather quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Make the batter
In a bowl, add the yolks of the eggs without beating.
Stir in the sugar gradually until the mixture is fine and creamy.
Pour in the boiling milk, then add the flour mixed with baking soda and cream of tartar.
Gently fold in the egg whites.
Bake
Bake in a preheated oven at 400°F (200°C) 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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Milk + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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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 + vanillatop 12% of all pairsSmell alikemoderateCooked together19,241 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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
- Provide structure and richness, with the whites trapping air that lifts the cake.
- Flour
- Forms the gluten network that gives the sponge its structure as it sets.
- Sugar
- Adds sweetness, softens the crumb, and helps the crust brown.
- Boiling milk
- Adds moisture and helps the flour hydrate and the batter set.
- Baking soda
- Reacts with the acid in cream of tartar to release gas that makes the cake rise.
- Cream of tartar
- Supplies acid that activates the baking soda and helps keep the crumb tender.
The step that matters
Gently fold in the egg whites. Egg whites hold air that lifts the sponge. Stirring vigorously or overmixing knocks out that air, so the cake bakes flat and dense.
“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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