Why it works: Milk and butter 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 ↓
American Layer Cake
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Make the batter
Cream the butter and sugar together.
Beat the eggs and add them to the mixture alternately with the flour.
Add the flavoring and baking powder, mixing well.
Bake and finish
Pour the batter into greased cake pans.
Bake in a moderate oven at 350°F (175°C) until golden brown.
If desired, fill with walnut filling and ice the top, decorating with walnuts.
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.
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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + walnuttop 12% of all pairsSmell alikemoderateCooked together5,873 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
Flour and butter 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
- All-purpose flour
- Provides the structure that holds the cake's crumb together as it bakes.
- Butter
- Creamed with sugar to trap air and add richness and tenderness to the crumb.
- Granulated sugar
- Sweetens the cake and, creamed with butter, helps build a light, airy texture.
- Eggs
- Add structure, moisture and richness, and help bind the batter.
- Baking powder
- Releases gas in the batter so the cake rises and becomes light.
- Sweet milk
- Adds moisture and helps form a smooth batter that bakes into a tender cake.
The step that matters
Adding the eggs alternately with the flour. Adding the eggs and flour in alternating portions keeps the batter emulsified and prevents curdling. Mixing in flour gradually also limits gluten development, which keeps the cake tender rather than tough.
Swap the walnut
The recipe marks walnut as optional. How well each one fits the dish's main ingredients (flour, milk, sugar, butter, egg):
- Almondfits better
- Chestnutfits about as well
- Milletfits about as well
- Walnutthe original
Fit is the average pairing score against flour, milk, sugar, butter, egg. 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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