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 ↓
Feather 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. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Prepare the batter
Preheat the oven to 350°F (175°C).
In a bowl, beat the egg and sugar until well combined.
Add the cold butter and milk, mixing until smooth.
Gradually stir in the flour, cream of tartar, and baking soda until just combined.
Bake and cool
Pour the batter into a greased cake pan.
Bake for 25-30 minutes or until a toothpick comes out clean.
Let cool before serving.
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).
-
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).
-
Milk + appletop 11% of all pairsSmell alikemoderateCooked together4,104 recipes
Shared aroma: 4-heptenal (creamy, biscuit).
-
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
- Eggs
- Egg structure and binding help set the cake's crumb.
- Sugar
- Sweetness, and it helps tenderize the crumb while creaming with the egg.
- Flour
- Provides the main structure that sets as the cake bakes.
- Cream of tartar
- Acid that stabilizes the egg foam and helps give a lighter texture.
- Baking soda
- Reacts with acidic ingredients to produce gas that helps the cake rise.
- Milk
- Adds moisture and helps form a smooth batter.
The step that matters
Folding in the flour, cream of tartar, and baking soda. Mixing only until just combined keeps the batter light. Overmixing develops gluten in the flour, which can make the cake tough and dense.
Swap the apple
The recipe marks apple as optional. How well each one fits the dish's main ingredients (egg, sugar, butter, milk, flour, cream):
- Vanillafits better
- Raisinfits better
- Coconutfits better
- Applethe original
Fit is the average pairing score against egg, sugar, butter, milk, flour, cream. 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
Apple Pudding256 recipes
Apple Cake80 recipes
Apple Meringue75 recipes
Dried Apple Cake51 recipesThe 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.