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 ↓
Princess Cake
Ingredients
Directions
The book says “a fairly hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Make the batter
Beat the butter and sugar together until creamy.
Sift the flour and baking powder together.
Add the flour mixture alternately with the milk to the butter mixture.
Incorporate the flavoring and the beaten egg whites gently.
Bake and finish
Line a round cake tin with greased paper and pour in the batter.
Bake at 400°F (200°C) for about 40 minutes.
Once cooled, invert the cake and cover the bottom and sides with white icing.
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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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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Flour + milktop 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
- Beaten whites trap air, giving the cake lift and a light, airy crumb.
- Flour
- Its proteins set during baking, forming the cake's structure.
- Butter
- Creamed with sugar, it traps air and adds richness and tender texture.
- Sugar
- Creaming with butter helps incorporate air and adds sweetness and gentle browning.
- Baking powder
- Releases gas during baking, helping the cake rise.
- Milk
- Adds moisture and liquid that hydrates the flour to form the batter.
The step that matters
Incorporate the flavoring and the beaten egg whites gently. Folding rather than stirring keeps the air in the beaten whites. Vigorous mixing deflates the foam, which leads to a denser, less risen cake.
“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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