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 ↓
Ginger Snaps
Ingredients
Directions
The book says “a quick oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Make the dough
Melt the butter and lard together.
Mix in the brown sugar and molasses.
Add the ginger and stir well.
Dissolve the baking soda in the milk and strain it into the mixture.
Add enough flour to make a dough that can be rolled out very thin.
Bake
Cut into cookie shapes and bake in a slow oven at 300°F (150°C) until done.
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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Sugar + molassestop 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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Molasses + gingertop 14% of all pairsSmell alikelowCooked together4,116 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Flour + milktop 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
- Flour
- Forms the dough structure that holds the cookies together as they bake.
- Butter and lard
- Add fat that gives the cookies tenderness and a short, crisp bite.
- Molasses
- Adds moisture, dark color and rich sweetness with a deep flavor.
- Brown sugar
- Adds sweetness and moisture, helping the cookies brown as they bake.
- Baking soda
- Reacts with the molasses's acidity to lighten the dough and promote browning.
The step that matters
Dissolve the baking soda in the milk and strain it into the mixture. Baking soda needs to be fully dissolved so it is evenly distributed; lumps leave bitter spots and uneven rising. Straining removes undissolved bits before they reach the dough.
Swap the ginger
How well each one fits the dish's main ingredients (butter, sugar, molasses, flour, milk):
- Cinnamonfits better
- Nutmegfits better
- Gingerthe original
- Jalapenofits about as well
Fit is the average pairing score against butter, sugar, molasses, flour, milk. 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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