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 Jelly 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. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Make the cake
Preheat the oven to 350°F (175°C).
Cream the butter and sugar together until light and fluffy.
Add the sweet milk and mix well.
Gradually add the flour and baking powder, mixing until smooth.
In a separate bowl, beat the eggs and then fold them into the batter.
Pour the batter into a greased cake pan and bake for about 30-35 minutes.
Make the lemon jelly
For the jelly, combine the egg, melted butter, sugar, grated lemon rind, and juice in a heatproof dish.
Cook over simmering water, stirring until it reaches the right consistency.
Assemble
Once the cake is cool, spread the lemon jelly on top.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Milk + coffeetop 10% of all pairsSmell alikemoderateCooked together2,202 recipes
Shared aroma: 4-heptenal (creamy, biscuit).
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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).
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
- Creams with sugar to trap air, giving the cake a tender, fine crumb.
- Eggs
- Provide structure and richness, setting the crumb as the cake bakes.
- Flour
- Forms the main structure of the cake once its starch sets in the oven.
- Baking powder
- Releases gas in the batter, helping the cake rise and turn light.
- Sugar
- Sweetens the cake and helps create a soft, fluffy texture when creamed.
- Lemon
- Adds bright acidity and aroma to the jelly topping.
The step that matters
Cooking the lemon jelly over simmering water. The egg mixture thickens as its proteins set with gentle heat. Too much heat can scramble the eggs, so it should be stirred constantly over simmering water, not boiling.
Swap the lemon
How well each one fits the dish's main ingredients (butter, sugar, milk, flour, egg, coffee):
- Vanillafits better
- Raisinfits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against butter, sugar, milk, flour, egg, coffee. 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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