Why it works: Molasses and sugar are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 9,225 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Ginger Snaps
Ingredients
Directions
The book says “a moderately hot oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Make the dough
Boil molasses and sugar together for 5 minutes.
Add the shortening and dissolved baking soda, then let cool slightly.
Gradually mix in flour until the dough is stiff.
Add ginger and spices to taste.
Bake
Roll the dough thin, cut into shapes, and bake in a moderate oven at 350°F (175°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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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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Molasses + gingertop 14% of all pairsSmell alikelowCooked together4,116 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + gingertop 15% of all pairsSmell alikemoderateCooked together8,564 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
- Molasses
- Adds dark color, deep flavor and moisture, and helps the cookies stay chewy.
- Lard and butter
- Provides fat for tenderness and a rich, short texture.
- Baking soda
- Reacts with the molasses's acidity to lighten the dough and help it spread and rise.
- Egg
- Binds the dough and adds structure as it bakes.
- Flour
- Provides the structure that holds the cookies in shape.
The step that matters
Let the molasses mixture cool slightly before adding the baking soda and fat. Baking soda reacts quickly with acidic molasses, so adding it to a very hot mixture can make it foam up and lose lift. Cooling slightly keeps the reaction controlled and the dough workable.
Swap the ginger
How well each one fits the dish's main ingredients (molasses, sugar, butter, egg, flour):
- Cinnamonfits better
- Nutmegfits better
- Jalapenofits about as well
- Gingerthe original
Fit is the average pairing score against molasses, sugar, butter, egg, 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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