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.
Make the cake
Preheat the oven to 350°F (175°C).
Cream the butter and sugar together until light and fluffy.
Add the melted chocolate and mix well.
In a separate bowl, combine the beaten egg whites and milk.
Gradually add the milk mixture to the chocolate mixture.
Sift together the flour, baking powder, and salt, then fold into the batter.
Pour the batter into a greased cake pan and bake for 30‑35 minutes.
Make and spread the frostings
For the first frosting, combine melted butter, sugar, milk, and cream of tartar in a saucepan.
Boil for 13 minutes, then flavor with vanilla and beat until thick enough to spread.
For the second frosting, melt the chocolate with sugar and boiling water until smooth.
Spread the first frosting on the cooled cake, then top with the second frosting.
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.
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
-
Chocolate + creamtop 11% of all pairsSmell alikemoderateCooked together5,466 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 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
- Butter
- Creams with sugar to trap air, giving the cake a light, fluffy crumb and tender texture.
- Egg whites
- Provide structure and lift as they set in the oven, helping the cake rise and hold its shape.
- Flour
- Forms the cake's main structure once mixed with liquid and heated.
- Baking powder
- Releases gas during baking, making the cake rise and become airy.
- Chocolate
- Provides the cake's chocolate flavor and adds richness to the batter.
The step that matters
Boil the first frosting for exactly 13 minutes. Boiling sugar and milk to the right point controls how much water evaporates and how the sugar crystallizes. Too short and the frosting stays runny; too long and it becomes grainy or hard before it can be spread.
“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