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 ↓
Layer Cakes
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Make the cake
Preheat the oven to 350°F (175°C).
Cream the butter until smooth, then add corn starch, milk, and baking powder.
Beat the egg whites until stiff peaks form and fold them into the mixture.
Pour the batter into prepared cake pans and bake until golden.
Make the icing
For the icing, boil ½ cup of water with 2 cups of sugar until slightly thick.
Whip the egg whites until stiff, then gradually pour the hot syrup over them while whipping until cool.
Spread the icing between the layers, on top, and on the sides of the cake.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Vanilla + sugartop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Corn + vanillatop 9% of all pairsSmell alikemoderateCooked together1,943 recipes
Shared aroma: ethyl cinnamate (sweet, balsamic).
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Corn + milktop 10% of all pairsSmell alikemoderateCooked together6,955 recipes
Shared aroma: hexanal (green, grassy).
Vanilla and sugar 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
- Butter
- Creamed with the sugar, it traps air and gives the cake a tender, rich crumb.
- Corn starch
- Softens the crumb by diluting the flour-like protein structure, giving a fine, delicate texture.
- Egg whites
- Whipped to stiff peaks, they trap air that lifts the batter and gives the cake its light structure.
- Baking powder
- Releases gas when heated, helping the cake rise in the oven.
- Sugar
- Sweetens the cake and, boiled into syrup, forms the icing that sets as it cools.
The step that matters
Pouring the hot syrup into the egg whites. The syrup must be added slowly while whipping so it cooks the whites gently and builds a stable, glossy foam. Pouring too fast can deflate the whites or leave the icing runny.
“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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