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 ↓
Sunshine 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
Sift and measure the flour and powdered sugar, then set aside.
Beat the egg yolks thoroughly.
Beat the egg whites until foamy, then add cream of tartar and beat until very stiff.
Gently stir in the powdered sugar, then the beaten yolks, followed by the flour.
Bake
Pour the batter into a prepared pan and bake at 350°F (175°C) for 35 to 50 minutes.
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.
Photo for illustrative purposes only · Contact us to use it
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).
-
Chocolate + walnuttop 10% of all pairsSmell alikemoderateCooked together1,548 recipes
Shared aroma: 3-ethyl-2,5-dimethylpyrazine (roasted, nutty).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Walnut + flourtop 12% of all pairsSmell alikemoderateCooked together5,873 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Sugar + chocolatetop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, sweet).
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
- Eggs
- Provide structure and richness, and whipped whites trap air that lifts the batter.
- Flour
- Forms the cake's structure as its proteins set during baking.
- Butter
- Adds fat for a tender, rich crumb.
- Baking powder
- Releases gas in the batter, helping the cake rise.
- Sugar
- Sweetens the cake and helps keep the crumb tender.
- Grated chocolate
- Gives the cake its chocolate flavor and deep color.
The step that matters
Beating the egg whites until very stiff. Stiff whites trap air that gives the cake lift. Underbeaten whites collapse and make a dense cake, while overbeaten whites turn grainy and dry. Stir the whites in gently so the air is not lost.
Swap the walnut
How well each one fits the dish's main ingredients (sugar, chocolate, egg, butter, flour, milk):
- Almondfits better
- Hazelnutfits about as well
- Pecansfits about as well
- Walnutthe original
Fit is the average pairing score against sugar, chocolate, egg, butter, flour, milk. Candidates are from the same food group and used in at least 100 recipes.
“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.
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