Why it works: Milk and butter 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 ↓
Millie's Molasses Drops
Ingredients
Directions
The book says “a rather quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Make the dough
Mix molasses, sugar, and butter together.
Gradually add flour until the mixture is almost stiff.
Dissolve baking soda in a little warm water and stir it in.
Add more flour until the mixture can drop from a spoon onto buttered paper without running together.
Bake
Bake in a preheated oven at 400°F (200°C).
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Molasses + sugartop 11% of all pairsSmell alikemoderateCooked together9,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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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
- Molasses
- Adds dark color, moisture, and a deep, sweet flavor to the cookies.
- Butter
- Adds fat for tenderness and richness in the finished cookies.
- Baking soda
- Reacts with the sour milk to produce gas that lightens and raises the cookies.
- Sour milk
- Provides acidity that activates the baking soda and adds tenderness.
- Flour
- Provides structure, setting the dough so it holds its shape as it bakes.
The step that matters
Add more flour until the mixture can drop from a spoon. Too little flour makes the dough spread and run together in the oven, while too much makes the cookies dry and dense. The dough should be stiff enough to hold its shape on the spoon.
“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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