Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. 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.
Make the batter
Beat the butter until creamy.
Add the powdered sugar and beat well.
Add the eggs one at a time, mixing well after each addition.
Stir in the flour and baking powder.
Finally, add the grated chocolate and mix until combined.
Bake
Pour the batter into a greased cake pan and bake at 350°F (175°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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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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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + chocolatetop 16% of all pairsSmell alikemoderateCooked together10,543 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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
- Butter
- Creamed with sugar to trap air and give the cake a tender crumb.
- Eggs
- Add structure and moisture, binding the batter as it sets in the oven.
- Flour
- Forms the structure that holds the cake's shape as it bakes.
- Baking powder
- Releases gas during baking so the cake rises and becomes light.
- Powdered sugar
- Sweetens the batter and dissolves easily into the creamed butter.
- Grated chocolate
- Adds chocolate flavor and richness to the batter.
The step that matters
Adding the eggs one at a time. Adding eggs gradually and mixing well after each one lets them emulsify fully into the butter mixture. Dumping them in together can cause curdling and a denser, uneven cake.
“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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