Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. 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. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Prepare
Preheat your oven to 350°F (175°C).
Make the batter
In a bowl, cream together the sugar and butter.
Add the eggs and mix well.
Stir in the sour milk and baking soda.
In another bowl, combine the flour and baking powder.
Gradually add the dry ingredients to the wet mixture.
Fold in the melted chocolate until well combined.
Bake
Pour the batter into a greased cake pan and bake for 30-35 minutes.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + chocolatetop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, sweet).
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Milk + chocolatetop 13% of all pairsSmell alikemoderateCooked together9,128 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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
- Provide structure and richness, helping the batter bind and set as it bakes.
- Baking soda
- Reacts with the sour milk to release gas, helping the cake rise.
- Baking powder
- Releases gas as it heats, adding lift to the cake.
- Flour
- Forms the structure that holds the cake together as it bakes.
- Sour milk
- Adds acidity that activates the baking soda and tenderizes the crumb.
- Melted chocolate
- Adds flavour and richness, and contributes fat and moisture to the batter.
The step that matters
Gradually add the dry ingredients to the wet mixture. Adding flour in portions and mixing only until combined keeps the batter smooth and limits gluten development, which would otherwise 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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