Why it works: Flour and raisin match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 9,075 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Sour Milk 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.
Prepare
Preheat the oven to 350°F (175°C).
In a bowl, cream together the sugar and butter.
Add the egg and mix well.
Make the batter
In another bowl, combine the flour, salt, baking soda, cocoa, and spice.
Gradually add the dry ingredients to the wet mixture, alternating with the sour milk.
Fold in the chopped raisins.
Bake and cool
Pour the batter into a greased cake pan and bake for 30-35 minutes.
Let cool before frosting.
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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Flour + raisintop 1% of all pairsSmell alikestrongCooked together9,075 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Clove + raisintop 9% of all pairsSmell alikemoderateCooked together4,070 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Sugar + raisintop 13% of all pairsSmell alikemoderateCooked together12,481 recipes
Shared aroma: beta-damascenone (apple, rose).
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
- Sour milk
- Its acidity reacts with baking soda to help the cake rise and gives a tender crumb.
- Baking soda
- Reacts with the acidic sour milk to produce carbon dioxide, lifting the batter as it bakes.
- Butter
- Adds fat for richness and a tender texture when creamed with sugar.
- All-purpose flour
- Provides the structure that sets the cake as the batter bakes.
- Sugar
- Sweetens the cake and helps create a soft crumb when creamed with butter.
- Egg
- Binds the batter and adds structure and richness to the crumb.
The step that matters
Alternating dry ingredients with sour milk. Adding the dry ingredients gradually and alternating with the sour milk keeps the batter smooth and evenly mixed. Overmixing once flour is added develops gluten, which can make the cake tough.
Swap the clove
How well each one fits the dish's main ingredients (sugar, butter, egg, flour, milk, cocoa powder, raisin):
- Cinnamonfits better
- Nutmegfits better
- Jalapenofits better
- Clovethe original
Fit is the average pairing score against sugar, butter, egg, flour, milk, cocoa powder, raisin. 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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