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 ↓
Apple Cake
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the batter
Sift the flour, baking powder, and salt together.
Beat the egg slightly and mix in the milk.
Gradually add the milk mixture to the dry ingredients, then beat well.
Fold in the melted butter.
Assemble and bake
Slice the apple and place it in an agate pan, sprinkling with sugar.
Pour the batter over the apples and bake at 400°F (200°C) for about 25 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.
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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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Milk + appletop 11% of all pairsSmell alikemoderateCooked together4,104 recipes
Shared aroma: 4-heptenal (creamy, biscuit).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 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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Butter + appletop 14% of all pairsSmell alikemoderateCooked together8,706 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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
- Flour
- Forms the main structure of the cake as its starch sets during baking.
- Egg
- Adds structure and binds the batter as its proteins set in the oven.
- Baking powder
- Releases gas in the batter so the cake rises and becomes light.
- Butter
- Adds fat for tenderness and richness in the crumb.
- Milk
- Hydrates the flour and adds moisture to the batter.
- Apple
- Adds moisture and fruity flavor that softens and sweetens as it bakes.
The step that matters
Beat the batter well after adding the milk mixture. Gradually adding liquid and then beating develops the flour's gluten evenly, giving the cake enough structure to hold its rise. Under-mixing can leave dry pockets, while over-beating makes the cake tough.
Swap the apple
How well each one fits the dish's main ingredients (flour, milk, egg, butter, sugar):
- Vanillafits better
- Raisinfits better
- Figfits better
- Applethe original
Fit is the average pairing score against flour, milk, egg, butter, sugar. 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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