Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Feather 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.
Make the batter
Cream together the butter and sugar until well mixed.
Add the milk and beat until very light.
Weigh out the flour.
Add one-third of the flour to the mixture, beating well.
Separate the eggs.
Beat the egg whites to a stiff froth.
Beat the egg yolks until creamy.
Add the yolks to the mixture.
Add the whites to the mixture.
Add the remaining flour, beating well after each addition.
Stir in the baking powder and flavoring.
Bake
Pour the batter into a well-greased cake pan.
Bake in a moderate oven at 350°F (175°C) for thirty 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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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
- Whites trap air for lightness, and yolks add richness and structure to the crumb.
- Butter
- Creamed with sugar, it traps air and gives the cake a tender, rich texture.
- Flour
- Builds the cake's structure once mixed and set by heat.
- Baking powder
- Releases gas in the batter, helping the cake rise in the oven.
- Sugar
- Sweetens the cake and helps create a light, aerated creamed base.
The step that matters
Add the egg whites gently. Stiffly beaten whites hold the air that makes the cake light. Folding them in gently rather than beating hard keeps that air from collapsing, so the cake rises well.
“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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