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 says “a medium oven”. The 350°F (175°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
Preheat the oven to 350°F (175°C).
Melt the chocolate, sugar, and milk together in a saucepan.
Make the batter
Cream the butter and sugar together until light and fluffy.
Add the beaten egg yolks to the butter mixture.
Stir in the melted chocolate mixture.
Sift the flour with baking powder five times, then add it alternately with the milk to the batter.
Mix in the vanilla extract and fold in the beaten egg whites gently until combined.
Bake and assemble
Pour the batter into a greased loaf pan or divide it into three layer pans.
Bake for 30-35 minutes or until a toothpick comes out clean.
For the filling, whip the cream until stiff and sweeten to taste.
Layer the cake with chopped walnuts and whipped cream between the layers and on top.
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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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).
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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Vanilla + walnuttop 10% of all pairsSmell alikestrongCooked together2,730 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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
- Egg yolks enrich the batter, and beaten whites add air and lift to the crumb.
- Butter
- Creamed with sugar, it traps air and gives the cake a tender, rich texture.
- All-purpose flour
- Its proteins set during baking to give the cake its structure.
- Baking powder
- Releases gas in the batter so the cake rises and becomes light.
- Chocolate
- Adds deep chocolate flavor and richness to the batter.
- Heavy cream
- Whipped, it forms a light, moist filling and topping between the layers.
The step that matters
Fold in the beaten egg whites gently. Egg white foam holds the air that lifts the cake. Vigorous stirring knocks this air out, leaving a denser, flatter cake, so fold with a light, sweeping motion until just combined.
Swap the walnut
How well each one fits the dish's main ingredients (egg, butter, sugar, milk, flour, vanilla, chocolate):
- Almondfits better
- Hazelnutfits better
- Chestnutfits better
- Walnutthe original
Fit is the average pairing score against egg, butter, sugar, milk, flour, vanilla, 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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