Why it works: Chocolate and sugar are a kitchen classic. They rank in the top 13% of all ingredient pairs, and cooks put them together in 15,404 recipes. Both carry guaiacol, which smells smoky, sweet. The science ↓
Chocolate Cake
Ingredients
Directions
The book says “a very hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Make the batter
Cream the egg yolks and powdered sugar for ten minutes.
Add the beaten egg whites, flour, grated chocolate, and baking powder.
Bake and fill
Bake in three layers in a very hot oven at 400°F (200°C).
Use cream filling between the layers.
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.
-
Chocolate + sugartop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Chocolate + flourtop 18% of all pairsSmell alikelowCooked together8,994 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Egg + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
Egg and flour barely smell alike, yet cooks put them together in 106,462 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
- Whites trapped with air give the cake its light, airy structure once baked.
- Flour
- Provides the starch and gluten network that sets the cake's structure as it bakes.
- Baking powder
- Releases gas in the batter, helping the layers rise in the oven.
- Powdered sugar
- Creamed with the yolks, it adds sweetness and helps give a tender crumb.
- Sweet chocolate
- Adds chocolate flavor and richness to the batter.
The step that matters
Adding the beaten egg whites. Beaten whites hold air that makes the layers light. Mixing them in too vigorously knocks that air out, so the cake bakes up denser and flatter.
“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.
More chocolate cake recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Chocolate Cream171 recipes
Chocolate Cookies76 recipes
Chocolate Fudge55 recipes
Chocolate Drop Cookies50 recipes