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 ↓
Lemon Cake
Ingredients
Directions
Make the batter
Cream the butter and powdered sugar together until light and fluffy.
Beat the egg yolks until thick and light, then add them to the butter mixture.
Add the milk and flour alternately, mixing well after each addition.
Fold in the baking soda, then gently add the beaten egg whites.
Stir in the grated lemon rind and lemon juice.
Bake and finish
Pour the batter into a prepared cake pan and bake until golden.
Cover with icing flavored with lemon juice once cooled.
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 + 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).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Milk + lemontop 15% of all pairsSmell alikemoderateCooked together19,053 recipes
Shared aroma: 2-nonenal (fatty, 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
- Butter
- Creamed with sugar to trap air, giving the cake a tender, rich crumb and flavor.
- Egg yolks
- Add richness, fat and emulsifying power, helping the batter stay smooth and moist.
- Egg whites
- Whipped and folded in to add lift and a light, airy structure.
- All-purpose flour
- Provides the main structure that sets as the cake bakes.
- Baking soda
- Reacts with acidity in the batter to release gas, helping the cake rise.
- Lemon juice
- Adds acidity and bright lemon aroma that balance the sweetness.
The step that matters
Folding in the beaten egg whites. Egg whites hold air bubbles that give lift. Stirring them vigorously or mixing too long deflates the foam, leaving a denser cake, so fold gently until just combined.
Swap the lemon
How well each one fits the dish's main ingredients (butter, sugar, egg, milk, flour):
- Vanillafits better
- Raisinfits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against butter, sugar, egg, milk, flour. 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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