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 ↓
Fudge Cake
Ingredients
Directions
Make the batter
Cream the butter until soft and creamy.
Add the brown sugar and cream until very light and frothy.
Add the egg yolks and cream for 3 minutes.
Sift the flour, baking soda, and salt together 3 times.
Add 5 tablespoons of the sifted ingredients to the mixture and cream well.
Alternately add the remaining dry ingredients and sour milk to the creamed mixture.
Beat hard for 4 to 5 minutes after all ingredients are added.
Fold in the vanilla, melted chocolate, and stiffly beaten egg whites carefully. Do not beat after adding the egg whites.
Bake and assemble
Bake in greased and floured layer cake pans.
Set the layers together with soft chocolate icing.
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.
-
Milk + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
-
Chocolate + vanillatop 5% of all pairsSmell alikemoderateCooked together10,020 recipes
Shared aroma: sotolon (curry, maple).
-
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).
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
- All-purpose flour
- Provides the structure that holds the cake's crumb together as it bakes.
- Eggs
- Egg whites add lift and structure, while yolks add richness and moisture.
- Baking soda
- Reacts with the sour milk to produce gas that makes the cake rise.
- Sour milk
- Its acidity activates the baking soda and helps give a tender crumb.
- Light brown sugar
- Adds sweetness, moisture, and a softer texture, and helps the batter cream to a light base.
- Butter
- Adds fat for tenderness and richness, and traps air when creamed.
The step that matters
Do not beat after adding the egg whites. Stiffly beaten egg whites hold air that gives the cake its lift. Vigorous beating after folding them in deflates that foam and leaves a denser, tougher cake.
“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 fudge 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.
Chocolate Cream171 recipes
Vanilla Ice Cream108 recipes
Chocolate Cookies76 recipes
Chocolate Fudge55 recipes