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
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.
Make the cake batter
Preheat the oven to 350°F (175°C).
Cream together the sugar and butter.
Add the egg yolks and mix well.
Stir in the sweet milk.
In a separate bowl, combine the flour and baking powder.
Gradually add the dry ingredients to the wet mixture.
In another bowl, beat the egg whites until stiff peaks form, then fold them into the batter.
Pour the batter into layer cake pans and bake until golden.
Make the lemon filling
For the filling, mix sugar, butter, and beaten egg in a saucepan.
Stir in hot water, then add the lemon juice and grated rind.
Cook until the mixture begins to thicken, then let it cool.
Spread the filling between the cake layers.
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
- Eggs
- Egg yolks enrich the batter, and whipped whites lighten it and help it rise.
- Flour
- Provides the structure that holds the cake's crumb together as it bakes.
- Baking powder
- Releases gas during baking, making the layers rise and turn light.
- Butter
- Adds fat for tenderness and flavour in the cake and the filling.
- Sugar
- Sweetens the cake and filling and helps the batter brown.
- Lemon
- Adds acidity and aroma to the filling through its juice and grated rind.
The step that matters
Cook the filling until it begins to thicken. The egg in the filling must be heated enough to thicken the mixture, but overcooking can curdle it. Stop once it starts to thicken, then let it cool before spreading.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, butter, egg, milk, flour):
- Vanillafits better
- Raisinfits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against sugar, butter, 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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