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 slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Make the chocolate mixture
Melt the chocolate with ⅓ cup sugar, ⅓ cup milk, and ½ teaspoon vanilla in a bowl over a tea kettle until smooth.
Make the batter
In another bowl, cream ¼ cup butter with ½ cup sugar.
Add ⅓ cup milk, 1 egg, and ½ teaspoon baking soda to the butter mixture and mix well.
Stir in 1 cup flour and then add the melted chocolate mixture.
Mix until well combined and pour into a greased baking pan.
Bake
Bake in a slow oven at 300°F (150°C) until a toothpick comes out clean.
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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Milk + buttertop 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
- All-purpose flour
- Provides the structure that holds the cake together as it sets.
- Egg
- Helps bind the batter and adds structure and richness to the crumb.
- Butter
- Adds fat for tenderness and a rich, soft texture.
- Baking soda
- Reacts to create gas bubbles that help the cake rise.
- Chocolate
- Gives the cake its chocolate flavor and deep color.
The step that matters
Pour the batter into the pan promptly after mixing. Baking soda starts producing gas as soon as it meets the liquid and acid-free batter, so delaying the bake can weaken the rise. Mixing only until combined also avoids overdeveloping the flour's gluten, which would make the cake tough.
“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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