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 ↓
Sugar Cookies
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 dough
Cream the sugar and butter together.
Add the eggs and nutmeg to the mixture.
Dissolve the baking soda in a small amount of hot water and add it to the sour cream.
Combine the sour cream mixture with the butter and sugar mixture.
Add just enough flour to roll out the dough.
Bake
Bake in a moderate 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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Nutmeg + flourtop 8% of all pairsSmell alikemoderateCooked together18,623 recipes
Shared aroma: isobutyraldehyde (malty, green).
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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).
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 and richness, giving the cookies tenderness and flavor.
- Sugar
- Adds sweetness and helps the cookies brown as they bake.
- Sour cream
- Adds moisture and acidity that reacts with the baking soda to lighten the dough.
- Eggs
- Add structure and richness, binding the dough together.
- Baking soda
- Reacts with the acidic sour cream to produce gas, helping the cookies rise.
- Flour
- Provides structure so the dough can be rolled out and holds its shape.
The step that matters
Dissolve the baking soda in hot water before adding it to the sour cream. Baking soda needs an acid to react and release gas. Dissolving it evenly prevents pockets of soda, which can leave bitter spots and uneven rising.
Swap the nutmeg
How well each one fits the dish's main ingredients (butter, sugar, cream, egg, milk, flour):
- Nutmegthe original
- Cinnamonfits about as well
- Capersfits less well
- Jalapenofits less well
Fit is the average pairing score against butter, sugar, cream, egg, 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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