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 ↓
Marbled Cake
Ingredients
Directions
The book says “a hot oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 350°F (175°C).
Make the batters
For the light part, cream together white sugar and butter.
Add sweet milk, baking soda, cream of tartar, and egg whites; mix well.
Gradually stir in flour until smooth.
For the dark part, mix brown sugar, molasses, butter, sour milk, baking soda, and cream of tartar.
Bake
Layer the light and dark mixtures in a cake pan and swirl gently.
Bake until a toothpick inserted comes out clean, being careful not to over-bake.
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.
-
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).
-
Sugar + molassestop 11% of all pairsSmell alikemoderateCooked together9,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, 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
- Flour
- Provides the structure that holds the cake together as it bakes.
- Egg whites
- Add structure and lift to the light batter as they set in the oven.
- Butter
- Adds fat for a tender crumb and rich flavor in both batters.
- Molasses
- Gives the dark batter its color, moisture, and deep, slightly bitter sweetness.
- Baking soda
- Reacts with the acidic sour milk and cream of tartar to make the cake rise.
- Cream of tartar
- Acidifies the batter, stabilizing the egg whites and helping the cake rise.
The step that matters
Swirling the batters. Swirling too much blends the light and dark batters into an even color and loses the marble pattern. Swirl gently, only enough to create streaks.
“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.
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.
Molasses Cookies96 recipes
Molasses Cake90 recipes
Molasses Sponge Cake9 recipes
White Cake431 recipes