Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓
Birthday Cake
Ingredients
Directions
The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 300°F (150°C).
Cream the butter and sugar together.
Make the batter
Add the milk and vanilla to the beaten egg yolks.
Mix the liquid mixture alternately with the flour and baking powder into the creamed butter and sugar.
Beat well, then fold in the beaten egg whites.
Divide the batter into thirds.
Add cocoa powder to one third of the batter.
Add pink fruit coloring to another third of the batter.
Leave the last third plain.
Bake
Spoon the batter into a buttered cake pan, alternating colors.
Bake for 1 hour, being careful not to use too much pink coloring.
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.
-
Milk + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Vanilla + cocoa powdertop 10% of all pairsSmell alikemoderateCooked together2,189 recipes
Shared aroma: sotolon (curry, maple).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Eggs
- Egg yolks and whites add structure and richness, and the whites add lift when folded in.
- Butter
- Creaming with sugar traps air and gives the cake a tender, rich texture.
- Granulated sugar
- Creamed with butter to add sweetness and help hold air in the batter.
- Flour
- Provides the main structure that sets as the cake bakes.
- Baking powder
- Releases gas in the batter so the cake rises and becomes light.
- Milk
- Adds moisture and helps form a smooth, pourable batter.
The step that matters
Adding the pink fruit coloring. Fruit coloring is strong and can turn the batter too deep a shade or affect its texture if overused, so add it gradually until the desired pink is reached.
“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 birthday 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.
Vanilla Ice Cream108 recipes
Coconut Pudding26 recipes
Coconut Cake17 recipes
Cocoa Nut Candy11 recipes