Why it works: Coffee and chocolate are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 1,497 recipes. Both carry 2,3-butanedione, which smells buttery, creamy. The science ↓
Chocolate Loaf 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 batter
Cream the butter in a bowl using a fork.
Add the sugar and cream again until well combined.
Incorporate the egg yolks, coffee, milk, and vanilla extract.
Sift the flour with the baking powder and add to the mixture.
Melt the chocolate and mix it in.
Bake
Beat the egg whites until stiff and fold them into the batter.
Pour the batter into a loaf pan and bake at 350°F (175°C) until done.
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.
Photo for illustrative purposes only · Contact us to use it
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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Coffee + chocolatetop 5% of all pairsSmell alikemoderateCooked together1,497 recipes
Shared aroma: 2,3-butanedione (buttery, creamy).
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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).
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
- Forms the cake's structure once mixed with liquid and heated.
- Butter
- Adds fat that tenderizes the crumb and carries flavor.
- Sugar
- Sweetens the cake and helps keep the crumb tender and moist.
- Eggs
- Add richness and structure, and the whites add lift when beaten.
- Baking powder
- Releases gas in the batter to make the loaf rise.
- Malted chocolate
- Gives the cake its chocolate flavor and deep color.
The step that matters
Folding in the beaten egg whites. Stiff whites hold air that lifts the loaf. Stirring vigorously or overmixing knocks that air out, leaving a dense, heavy cake. Fold gently with a spatula until just combined.
“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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