Why it works: Flour and sorghum share more aroma than cooks usually use. They rank in the top 5% of all ingredient pairs, and cooks put them together in 99 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Sour Milk Ginger 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
Cream the butter and sugar together.
Add the beaten egg and sorghum, and cream until smooth.
Sift together the baking soda, baking powder, flour, ginger, and salt.
Add the dry ingredients alternately with the sour milk to the creamed mixture, then beat hard for two minutes.
Bake
Place in a greased and floured pan, optionally sprinkle sugar and cinnamon over the top, and bake at 350°F (175°C).
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 + sorghumtop 5% of all pairsSmell alikestrongCooked together99 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sorghum + gingertop 6% of all pairsSmell alikemoderateCooked together31 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 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
- Butter
- Adds fat that tenderises the crumb and carries flavour.
- Flour
- Provides the structure that sets the cake's crumb as it bakes.
- Egg
- Binds the batter and adds structure and richness.
- Sorghum or new orleans molasses
- Adds sweetness, moisture and deep colour to the cake.
- Sour milk
- Its acidity reacts with the baking soda to help the cake rise.
- Baking soda
- Reacts with the sour milk's acid to produce gas that lifts the batter.
The step that matters
Adding the dry ingredients alternately with the sour milk. Alternating keeps the batter emulsified and prevents overmixing, while the acid-soda reaction starts as soon as they meet, so the batter should go into the pan promptly to trap that gas for a good rise.
Swap the ginger
How well each one fits the dish's main ingredients (butter, sugar, egg, flour, sorghum, milk):
- Cinnamonfits better
- Nutmegfits better
- Capersfits about as well
- Gingerthe original
Fit is the average pairing score against butter, sugar, egg, flour, sorghum, milk. 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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