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
Preheat the oven to 350°F (175°C).
Cream the butter and sugar together until light and fluffy.
Add the eggs one at a time, mixing well after each addition.
In a separate bowl, combine the flour and baking powder.
Gradually add the flour mixture to the butter mixture, alternating with the milk.
For the chocolate mixture, combine the grated chocolate, sugar, and milk in a saucepan.
Add the egg yolk and cook over medium heat until thick, then let cool.
Fold the cooled chocolate mixture into the cake batter.
Bake and fill
Pour the batter into prepared cake pans and bake until a toothpick comes out clean.
For the filling, boil the brown sugar, butter, and milk in a saucepan until it reaches a caramel-like consistency.
Stir constantly until the filling cools, then add the chocolate and vanilla.
Spread the filling between the layers of the cooled 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
- Butter
- Creams with sugar to trap air and adds richness and tender texture.
- Eggs
- Add structure and richness, binding the batter as it sets in the oven.
- Flour
- Forms the cake's structure once it sets during baking.
- Baking powder
- Releases gas in the batter, helping the cake rise and turn light.
- Sugar
- Sweetens the cake and helps it brown and stay tender.
- Milk
- Adds moisture to the batter and helps the flour hydrate.
The step that matters
Cook the chocolate mixture until thick. The egg yolk can scramble if the heat is too high or it is stirred too little. Cooking gently and stirring constantly keeps the mixture smooth and thick enough to fold in 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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