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 ↓
Cookies
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Make the dough
Cream together the sugar and butter.
Add the eggs and milk, mixing well.
Stir in the cream of tartar and baking soda.
Gradually add flour until the dough is stiff.
Shape and bake
Roll out the dough.
Cut into desired shapes.
Bake in a preheated oven at 350°F (175°C) until golden.
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 + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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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).
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 creams with sugar to give the dough tenderness and richness.
- Eggs
- Add structure and binding so the dough holds its shape when rolled and cut.
- Cream of tartar
- Acidifies the dough and works with baking soda to help the cookies rise and stay tender.
- Baking soda
- Reacts with the acidic cream of tartar to produce gas that lightens the dough.
- Flour
- Provides the structure that sets the dough stiff enough to roll and cut.
The step that matters
Gradually add flour until the dough is stiff. Adding too much flour at once or too little overall changes the texture. Flour absorbs liquid and builds gluten, so adding it gradually lets you reach a stiff, rollable dough without making the cookies tough or dry.
“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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