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 ↓
Chocolate Marble 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
Preheat the oven to 350°F (175°C).
Make the batters
Melt the chocolate in 3 tablespoons of milk and mix in ½ cup of sugar.
In a bowl, combine the butter, remaining sugar, eggs, milk, flour, and baking powder.
Take 3 tablespoons of the white batter and mix it with the chocolate mixture.
Bake
In a buttered pan, layer the white batter and chocolate batter alternately until all the batter is used.
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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Milk + flourtop 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
- Butter
- Adds fat that gives the cake a tender, rich crumb.
- Eggs
- Provide structure and help bind the batter as it sets in the oven.
- Flour
- Forms the main structure of the cake as the batter sets.
- Baking powder
- Releases gas during baking so the cake rises and becomes light.
- Sugar
- Sweetens the batter and helps the cake brown during baking.
- Chocolate
- Provides the dark flavor and color of the marbled chocolate batter.
The step that matters
Alternating the layers in the pan. Layering the white and chocolate batters unevenly or mixing them too much blurs the marble pattern. Gentle, alternating spoonfuls keep the two batters distinct so they separate into clear swirls as the cake bakes.
“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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