Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓
Black Chocolate 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. The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Prepare the batter
Preheat the oven to 300°F (150°C).
Cream the butter and 1 cup of sugar together until light and fluffy.
Add the milk, flour, eggs, and baking soda, and mix until well combined.
Make the chocolate mixture
In a separate saucepan, combine the cake chocolate and ½ cup of milk with 1 cup of sugar.
Boil the chocolate mixture until smooth, then remove from heat and flavor with vanilla.
Cool the chocolate mixture slightly, then mix it into the batter.
Bake
Pour the batter into a greased cake pan and bake for about 30‑40 minutes or until a toothpick comes out clean.
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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Milk + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
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Chocolate + vanillatop 5% of all pairsSmell alikemoderateCooked together10,020 recipes
Shared aroma: sotolon (curry, maple).
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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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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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 gives the cake a tender, rich crumb.
- Eggs
- Provide structure and binding, setting as the cake bakes.
- Flour
- Forms the main structure that holds the cake's shape as it bakes.
- Baking soda
- Releases gas in the batter, helping the cake rise and lighten.
- Sugar
- Adds sweetness and helps keep the crumb tender and moist.
- Cake chocolate
- Gives the cake its chocolate flavor and deep color.
The step that matters
Cool the chocolate mixture slightly before mixing it into the batter. If the chocolate is still very hot, it can partly cook the eggs in the batter and cause lumps. Slight cooling lets it blend in smoothly and evenly.
“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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