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.
Make the cake batter
Cream together the sugar and butter.
Beat the eggs until very light and add them to the mixture.
Stir in the milk.
Sift the flour with the baking powder and add it to the mixture.
Add the melted chocolate and vanilla, mixing well.
Bake and fill
Divide the batter into three layers and bake at 350°F (175°C).
For the filling, heat 1 cup of milk and add the cornstarch mixed with a little cold milk.
Stir in ½ cup sugar and the egg yolk, cooking until thick and smooth, preferably in a double boiler.
Flavor with vanilla and spread between the layers.
Top and finish
For the topping, beat the egg whites until stiff, then fold in the melted chocolate and powdered sugar to spread.
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.
-
Milk + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
-
Chocolate + vanillatop 5% of all pairsSmell alikemoderateCooked together10,020 recipes
Shared aroma: sotolon (curry, maple).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
-
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
- Beaten eggs give the cake structure and lift through trapped air and set proteins.
- Flour
- Provides the structure that holds the cake's crumb once baked.
- Baking powder
- Releases gas in the batter so the layers rise and become light.
- Butter
- Creamed with sugar, it adds richness and a tender texture.
- Sugar
- Sweetens the cake and helps create a fine, tender crumb.
- Cornstarch
- Thickens the filling as it cooks, giving it a smooth, spreadable body.
The step that matters
Cooking the filling until thick and smooth. Cornstarch must be heated fully to swell and thicken the milk. Undercooked, the filling stays runny and tastes starchy. Cooking gently in a double boiler and stirring helps prevent scorching and lumps, and the egg yolk also thickens as it heats.
“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.
More chocolate cake recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Chocolate Cream171 recipes
Vanilla Ice Cream108 recipes
Chocolate Cookies76 recipes
Chocolate Fudge55 recipes