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 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Preheat the oven to 400°F (200°C).
Make the batter
In a bowl, mix the sugar and melted butter until combined.
Add the egg and milk, and stir until smooth.
Gradually add the sifted flour, cream of tartar, and baking soda, mixing well.
Flavor the batter with lemon.
Bake
Pour the batter into cake pans and let it rise for 10 to 15 minutes.
Bake in the preheated oven until golden brown.
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).
-
Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 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
- Flour
- Forms the structure that holds the cake's crumb together as it bakes.
- Cream of tartar
- Acidifies the batter so it reacts with baking soda to help the cake rise.
- Baking soda
- Reacts with the acid in the batter to produce gas that leavens the cake.
- Egg
- Adds structure and richness, helping bind the batter and set during baking.
- White sugar
- Sweetens the cake and contributes to browning at the surface.
- Milk
- Adds moisture and hydrates the flour so the batter forms a smooth mixture.
The step that matters
Adding the cream of tartar and baking soda. Baking soda needs an acid to release gas efficiently, and cream of tartar supplies it. Mixing them in gradually and evenly keeps the leavening distributed, so the cake rises uniformly rather than in patches or falling flat.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, butter, egg, milk, flour, cream):
- Vanillafits better
- Raisinfits better
- Coconutfits better
- Lemonthe original
Fit is the average pairing score against sugar, butter, egg, 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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