Why it works: Vanilla and milk 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 says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Make the batter
Preheat the oven to 350°F (175°C).
Cream the butter and gradually add the sugar, mixing well.
Add the egg whites and lemon juice, and beat thoroughly.
Alternately add the flour and milk, mixing until combined.
Sift the baking powder with the last half cup of flour and mix in.
Divide the batter into two thick layers and bake for 20 minutes.
Make the icing
For the icing, beat together the egg whites and confectioners' sugar for 5 minutes.
Melt the chocolate in a bowl over simmering water, then add to the sugar mixture and beat until thick.
Assemble
Spread a thick layer of icing between the cake layers and over the top and sides.
Let the cake stand until the icing hardens.
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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Vanilla + milktop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
-
Vanilla + chocolatetop 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
- Flour
- Builds the cake's structure as its proteins set during baking.
- Egg whites
- Add structure and lift, and help the batter hold its shape while baking.
- Baking powder
- Releases gas during baking, making the cake rise and become light.
- Butter
- Adds fat that tenderizes the crumb and gives a rich flavor.
- Sugar
- Sweetens the cake and helps keep it moist and tender.
- Unsweetened chocolate
- Provides the chocolate flavor and, melted into the icing, gives it body.
The step that matters
Alternately add the flour and milk, mixing until combined.. Once flour is wet, its gluten develops with mixing, so overmixing makes the cake tough. Mix only until the flour disappears.
Swap the lemon
How well each one fits the dish's main ingredients (butter, flour, sugar, egg, vanilla, milk, chocolate):
- Coconutfits better
- Figfits better
- Raisinfits better
- Lemonthe original
Fit is the average pairing score against butter, flour, sugar, egg, vanilla, milk, chocolate. Candidates are from the same food group and used in at least 100 recipes.
“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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