Why it works: Vanilla and milk 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 ↓
Perfect Layer 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).
Mix cornstarch and baking powder with the flour.
Make the batter
Cream the butter and add the sugar, mixing well.
Add the beaten egg yolks and vanilla extract.
Beat the egg whites until stiff peaks form.
Alternately add the milk and flour mixture, finishing with the egg whites.
Bake and serve
Divide the batter into three shallow pans and bake.
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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Vanilla + milktop 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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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Butter + flourtop 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
- Butter
- Adds richness and tenderness, and helps the cake feel soft and moist.
- Eggs
- Egg whites add lift and structure, while yolks add richness and help bind the batter.
- Flour
- Provides the main structure that holds the cake together as it bakes.
- Sugar
- Sweetens the cake and helps keep it tender and moist.
- Baking powder
- Releases gas during baking so the cake rises and becomes light.
- Cornstarch
- Softens the flour's gluten, giving a finer, more tender crumb.
The step that matters
Folding in the egg whites. Stiff egg whites trap air that makes the layers rise. Adding the milk and flour mixture alternately, finishing with the whites, keeps the batter light and avoids deflating the foam.
Swap the vanilla
How well each one fits the dish's main ingredients (butter, flour, sugar, egg, milk):
- Vanillathe original
- Raisinfits about as well
- Figfits less well
- Coconutfits less well
Fit is the average pairing score against butter, flour, sugar, egg, milk. 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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