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 ↓
Favorite 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.
Make the dough
Cream the butter and sugar together.
Add the sour milk, baking soda, and nutmeg; mix well.
Gradually add flour until the dough is soft and workable.
Shape and bake
Roll out the dough and cut into shapes.
Dip the tops in fine sugar and place on buttered baking sheets.
Bake in a preheated oven at 400°F (200°C) until light brown.
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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Nutmeg + flourtop 8% of all pairsSmell alikemoderateCooked together18,623 recipes
Shared aroma: isobutyraldehyde (malty, green).
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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).
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
- Creams with the sugar to give the cookies richness and a tender texture.
- Sugar
- Sweetens the cookies and helps them brown during baking.
- Sour milk
- Adds moisture and acidity that react with the baking soda.
- Baking soda
- Reacts with the acidic sour milk to produce gas that lightens the cookies.
- Flour
- Provides the structure that holds the dough together and lets it be rolled and cut.
The step that matters
Bake until light brown. Baking soda reacts quickly once mixed with the sour milk, so the dough should be shaped and baked promptly. Removing the cookies once they are just light brown keeps them tender, while overbaking dries them out and makes them hard.
Swap the nutmeg
How well each one fits the dish's main ingredients (butter, sugar, milk, flour):
- Cinnamonfits better
- Nutmegthe original
- Jalapenofits less well
- Capersfits less well
Fit is the average pairing score against butter, sugar, milk, flour. 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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