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 Sandwich Cake and Butter Icing
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.
Make the cake
Preheat the oven to 350°F (175°C).
Whisk the eggs and sugar together until light and thick, then stir in the milk.
Sift the flour and mix the baking powder with it; gradually stir this into the egg mixture.
Add a few drops of lemon essence.
Pour the mixture into two greased and floured sandwich cake tins.
Bake in the preheated oven until golden.
Make the icing and assemble
For the butter icing, rub the icing sugar through a sieve.
Beat the icing sugar and butter together until creamy; flavor with vanilla.
Spread a layer of icing between the cakes and decorate the top with icing using a piping bag.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + vanillatop 12% of all pairsSmell alikemoderateCooked together19,241 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
- Whisked with sugar to trap air, giving the cake its light, airy structure.
- Baking powder
- Releases gas in the batter, helping the cakes rise and become lighter.
- Castor sugar
- Whisked with the eggs to aid aeration and add sweetness and tender texture.
- Flour
- Forms the cake's structure as the batter sets during baking.
- Fresh butter
- Creamed with icing sugar to make a smooth, rich filling and topping.
- Icing sugar
- Dissolves into the butter to make a smooth, sweet icing.
The step that matters
Whisk the eggs and sugar until light and thick. Whisking incorporates air that the batter depends on for rise and a light crumb. Under-whisking leaves a dense cake, so the mixture should look pale and thick before the flour is folded in gently.
Swap the lemon
How well each one fits the dish's main ingredients (egg, sugar, flour, milk, butter, vanilla):
- Figfits better
- Raisinfits better
- Coconutfits better
- Lemonthe original
Fit is the average pairing score against egg, sugar, flour, milk, butter, vanilla. 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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