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 ↓
Imperial Cake
Ingredients
Directions
The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Mix the batter
Cream the butter until smooth.
Work 2 cups of flour into the creamed butter.
Beat the yolks and sugar together until well combined.
Soften the mixture with the milk.
Beat the egg whites until stiff and fold into the mixture.
Add the remaining flour and mix well.
Sift the baking powder into the batter and mix thoroughly.
Bake
Pour the batter into a greased pan and bake at 300°F (150°C) until golden.
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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Egg + flourtop 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
- Butter
- Creamed with sugar, it traps air and provides richness and a tender crumb.
- Eggs
- Yolks add richness and binding, while whipped whites add structure and lift.
- Sugar
- Sweetens the cake and helps create a fine, tender texture when creamed.
- Flour
- Forms the structure that holds the cake together as it sets.
- Milk
- Adds moisture and softens the mixture so it blends evenly.
- Baking powder
- Releases gas during baking, helping the cake rise and become light.
The step that matters
Folding in the stiff egg whites. The whites hold air that gives the cake its lift. Folding gently keeps those bubbles intact, while vigorous stirring deflates the batter and leads to a dense 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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