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 ↓
Marble Chocolate 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.
Prepare the batter
Preheat the oven to 350°F (175°C).
In a large bowl, beat the egg whites until stiff.
In another bowl, cream the butter and sugar together.
Gradually add the flour, cornstarch, milk, and baking powder to the butter mixture.
Take out 1 cup of the batter and mix in the grated chocolate moistened with a little milk.
Assemble and bake
Pour a layer of the white batter into a greased pan.
Drop spoonfuls of the chocolate batter onto the white batter.
Spread the remaining white batter over the chocolate spots.
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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Sugar + chocolatetop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, sweet).
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Milk + chocolatetop 13% of all pairsSmell alikemoderateCooked together9,128 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 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
- Egg whites
- Beaten until stiff, they trap air and give the cake a light, open structure.
- Butter
- Creamed with sugar, it adds richness and tenderness to the crumb.
- Sugar
- Creamed with butter, it sweetens the cake and helps give a tender texture.
- Flour
- Provides the main structure of the cake once baked.
- Cornstarch
- Softens the crumb, making the cake more tender than flour alone would.
- Baking powder
- Releases gas during baking so the cake rises and becomes light.
The step that matters
Spreading the remaining white batter over the chocolate spots. Spoon the chocolate batter gently and spread the white batter carefully so the layers stay distinct; heavy mixing blends the colours into an even brown and loses the marbled pattern.
“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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