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 your oven to 350°F (175°C).
In a bowl, beat the egg and mix in the sugar until well combined.
Add the cold butter and milk, mixing until smooth.
In another bowl, combine the flour, cream of tartar, and baking soda.
Gradually add the dry ingredients to the wet mixture, stirring until just combined.
If desired, fold in any optional ingredients like fruit sauces, jelly, lemon extract, spices, or raisins.
Bake and serve
Pour the batter into a greased cake pan and 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.
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Milk + appletop 11% of all pairsSmell alikemoderateCooked together4,104 recipes
Shared aroma: 4-heptenal (creamy, biscuit).
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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
- Bind the batter and add structure as the cake sets in the oven.
- Sugar
- Adds sweetness and tenderness, and helps the cake brown lightly.
- Flour
- Provides the main structure that holds the cake's crumb together.
- Cream of tartar
- Acidifies the batter so baking soda reacts properly, helping the cake rise and stay light.
- Baking soda
- Reacts with the acid in the batter to release gas, causing the cake to rise.
- Milk
- Adds moisture and helps form a smooth batter that bakes into a tender crumb.
The step that matters
Stirring the dry ingredients into the wet mixture. Stir only until just combined. Overmixing develops gluten in the flour, which can make the cake tough and dense, and it can also knock out the air and gas that help it rise.
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.
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