Why it works: Vanilla and chocolate are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 10,020 recipes. Both carry sotolon, which smells curry, maple. The science ↓
Excellent 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.
Prepare the batter
Preheat the oven to 350°F (175°C).
In a large bowl, beat the egg whites until stiff.
In another bowl, cream together the sugar and butter.
Add the flour, baking powder, and vanilla to the butter mixture.
Fold in the beaten egg whites gently.
Take one-third of the batter and mix in the melted chocolate.
Bake
Pour the chocolate batter into the center of a greased cake pan.
Pour the remaining batter around the chocolate mixture.
Bake in three layers 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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Vanilla + chocolatetop 5% of all pairsSmell alikemoderateCooked together10,020 recipes
Shared aroma: sotolon (curry, maple).
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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).
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Flour + vanillatop 12% of all pairsSmell alikemoderateCooked together19,241 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).
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
- Egg whites
- Beaten until stiff, they trap air and give the cake lift and a light crumb.
- Butter
- Creamed with sugar, it adds fat and tenderness to the crumb.
- Sugar
- Creamed with butter, it sweetens the cake and helps create a tender texture.
- Flour
- Provides the structure that holds the cake together as it bakes.
- Baking powder
- Releases gas during baking, helping the cake rise.
- Melted chocolate
- Adds chocolate flavor and richness to one portion of the batter.
The step that matters
Folding in the beaten egg whites. Stirring vigorously deflates the whipped foam, making the cake dense. Gentle folding keeps the air bubbles that help it rise.
“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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