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 ↓
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).
Cream together the sugar and butter.
Add the milk and eggs (except for the reserved egg white) and mix well.
Sift together the flour and baking powder, then gradually add to the mixture until just combined.
Bake and fill
Divide the batter into layers and bake until a toothpick comes out clean.
For the filling, combine the grated chocolate, 1 cup of milk, cornstarch, sugar, and vanilla in a double boiler.
Heat until the milk boils and the mixture thickens like cream, then remove from heat once the chocolate melts.
Spread the filling between the layers of cake.
Make and spread the icing
For the icing, mix the reserved egg white with the grated chocolate and confectioner's sugar in a small saucepan.
Heat gently, placing the saucepan on top of a kettle to prevent burning, until dissolved.
Spread the icing over the top of the cake.
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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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
- Eggs
- Bind the batter and add structure and richness as the cake sets.
- Butter
- Adds fat for tenderness and a rich, moist crumb.
- Flour
- Provides the structure that holds the cake together as it bakes.
- Baking powder
- Releases gas in the oven so the layers rise and become light.
- Sugar
- Sweetens the cake and helps brown the crumb and tenderize it.
- Cornstarch
- Thickens the chocolate filling into a smooth, creamy custard.
The step that matters
Heating the filling in a double boiler. Cornstarch thickens only when the milk reaches a boil, and chocolate scorches easily. Gentle indirect heat in a double boiler lets the starch thicken evenly while the chocolate melts without burning.
“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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