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 ↓
Feather Cake
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. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Prepare
Preheat your oven to 350°F (175°C).
Make the batter
Cream the butter and powdered sugar together.
Add the egg yolk and mix well.
In a separate bowl, beat the egg white until stiff peaks form.
Gently fold the beaten egg white into the butter mixture.
Gradually add the milk and flour, mixing until smooth.
Finally, fold in the baking powder and vanilla extract.
Bake
Pour the batter into a greased cake pan and bake for 25-30 minutes.
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.
Photo for illustrative purposes only · Contact us to use it
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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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
- Egg
- The whipped egg white traps air, giving the cake its light, airy structure.
- Flour
- Flour forms the cake's main structure once its proteins set in the oven.
- Butter
- Butter adds fat, which gives the cake a tender crumb and rich flavour.
- Powdered sugar
- Sugar sweetens the cake and helps it stay tender while creaming with the butter.
- Milk
- Milk adds moisture, loosening the batter and keeping the crumb soft.
- Baking powder
- Baking powder releases gas when heated, helping the cake rise.
The step that matters
Folding in the beaten egg white. Fold gently so the air whipped into the egg white is not knocked out. Lost air means a denser, flatter cake.
Swap the vanilla
How well each one fits the dish's main ingredients (egg, butter, sugar, milk, flour):
- Vanillathe original
- Raisinfits about as well
- Figfits less well
- Coconutfits less well
Fit is the average pairing score against egg, butter, sugar, milk, 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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