Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓
Citron Cake
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Make the batter
Sift the baking powder through the flour.
Cream together the butter and sugar.
Add the beaten egg yolks, flavoring, and milk to the mixture. Beat thoroughly.
Add a third of the flour.
Beat the egg whites until stiff. Fold part of the stiff egg whites into the mixture.
Add the remaining flour.
Fold in the rest of the egg whites.
Fold in the floured citron.
Bake and finish
Divide the batter into two cake pans lined with greased paper.
Bake in a moderate oven at 350°F (175°C).
Frost the cake when cool.
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.
-
Milk + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Vanilla + flourtop 12% of all pairsSmell alikemoderateCooked together19,241 recipes
Shared aroma: isobutyraldehyde (malty, green).
Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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
- Whipped whites add lift and airy structure, while yolks enrich the crumb.
- Flour
- Provides the structure that holds the cake together as it sets.
- Butter
- Creamed with sugar to trap air and add tenderness and richness.
- Granulated sugar
- Creamed with butter for a tender texture and sweetness, and helps browning.
- Baking powder
- Releases gas in the batter to make the cake rise.
- Sliced citron
- Adds candied fruit flavor and chewy pieces throughout the cake.
The step that matters
Folding the egg whites. Whites must be beaten stiff and folded in gently so the air bubbles are not deflated. Those bubbles provide much of the cake's lift, so overmixing leads to a dense cake.
Swap the vanilla
How well each one fits the dish's main ingredients (sugar, butter, milk, egg, flour):
- Vanillathe original
- Raisinfits about as well
- Figfits less well
- Coconutfits less well
Fit is the average pairing score against sugar, butter, milk, egg, 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.
More citron cake recipes
You might also like
Vanilla Ice Cream108 recipes
White Cake431 recipes
Pound Cake373 recipes
Orange Bundt Cake349 recipesThe 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.