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 ↓
Johnny-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 batter
In a bowl, beat the eggs and sugar together.
Add the cornmeal, melted butter or lard, sour milk, and flour to the mixture.
Mix in the baking soda and salt until well combined.
Pour the batter into a greased baking dish.
Bake and serve
Bake for 30-40 minutes or until golden brown.
Let cool slightly before serving.
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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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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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 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
- Eggs
- Bind the batter and add structure as they set in the oven.
- Cornmeal
- Provides the coarse, grainy texture that defines the cake.
- Sour milk
- Adds moisture and acidity that reacts with the baking soda.
- Baking soda
- Reacts with the acidic sour milk to produce gas that makes the cake rise.
- Flour
- Adds structure so the batter holds together while baking.
- Butter or lard
- Adds fat for tenderness and richness in the crumb.
The step that matters
Mix in the baking soda and salt until well combined. Baking soda needs acid from the sour milk to release gas. Even distribution keeps the rise uniform, while unmixed pockets can leave bitter, soapy spots or uneven lift.
“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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