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. 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 batter
Preheat your oven to 350°F (175°C).
In a bowl, beat the egg yolks and whites separately until fluffy.
In another bowl, cream together the butter and sugar until light and fluffy.
Add the egg yolks to the butter mixture and mix well.
In a separate bowl, combine the flour, cream of tartar, and baking soda.
Gradually add the dry ingredients to the butter mixture, alternating with the milk.
Fold in the beaten egg whites gently until just combined.
Bake and make the jelly
Pour the batter into a greased cake pan and bake for 25-30 minutes or until a toothpick comes out clean.
For the jelly, beat together the butter, sugar, and eggs in a bowl.
Set the bowl in a dish of hot water and stir until heated through.
Add the grated lemon rind and juice, stirring until thick and smooth.
While the cake is warm, spread layers of jelly 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.
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
-
Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Eggs
- Whites trapped by beating and folding give the cake its light, airy structure.
- Butter
- Creamed with sugar, it traps air and adds richness and a tender crumb.
- Flour
- Its proteins set during baking to form the cake's structure.
- Sugar
- Creamed with butter it helps trap air and adds sweetness and browning.
- Cream of tartar
- Acidifies the batter, stabilising the egg whites and supporting the rise with baking soda.
- Baking soda
- Reacts with the acid in the batter to produce gas that helps the cake rise.
The step that matters
Folding in the beaten egg whites. Egg whites hold air that gives the cake its lift. Stirring them in vigorously or too long knocks out the air, leaving a dense cake.
Swap the lemon
How well each one fits the dish's main ingredients (flour, sugar, egg, butter, milk, cream):
- Vanillafits better
- Raisinfits better
- Coconutfits better
- Lemonthe original
Fit is the average pairing score against flour, sugar, egg, butter, milk, cream. 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.
More lemon cake recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Lemon Ice147 recipes
Lemon Sherbet103 recipes
Lemon Custard64 recipes
Lemon Water Ice55 recipes