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 ↓
Soft Cookies
Ingredients
Directions
The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure. The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Prepare the dough
Preheat the oven to 400°F (200°C).
In a bowl, cream together the sugar and butter.
Add the eggs and mix well.
Dissolve the baking soda in the sour milk and add to the mixture.
Stir in the cinnamon and flour gradually until combined.
Roll the dough as soft as possible.
Bake
Place on a baking sheet and bake for 10-12 minutes.
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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Cinnamon + flourtop 9% of all pairsSmell alikemoderateCooked together17,341 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + cinnamontop 10% of all pairsSmell alikemoderateCooked together12,655 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
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Sugar + cinnamontop 10% of all pairsSmell alikelowCooked together30,779 recipes
Shared aroma: guaiacol (smoky, sweet).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
Sugar and cinnamon barely smell alike, yet cooks put them together in 30,779 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 dough and add richness and structure as they set in the oven.
- Baking soda
- Reacts with the sour milk to produce gas that lifts the cookies and helps them rise.
- Sour milk
- Its acidity activates the baking soda and adds moisture to the dough.
- Butter
- Adds fat for tenderness and flavor, and creams with sugar to trap air.
- Sugar
- Sweetens the dough and helps with browning and a softer crumb.
- Flour
- Provides the main structure as its proteins and starches set during baking.
The step that matters
Roll the dough as soft as possible. Dough that is handled or rolled too much becomes tough, and overworking develops gluten. Keeping the dough soft and minimally worked helps the cookies stay tender rather than dense.
“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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