Why it works: Molasses and ginger are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 4,116 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Old-fashioned Ginger Cakes
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the dough
Boil the molasses in a pot.
Dissolve the baking soda, ginger, and lard in the hot water.
Mix the molasses with the dissolved mixture and add flour to form a thick dough.
Shape and bake
Roll the dough thin and cut it into squares.
Brush the tops with the egg white and bake at 400°F (200°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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Molasses + gingertop 14% of all pairsSmell alikelowCooked together4,116 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Ginger + flourtop 15% of all pairsSmell alikemoderateCooked together8,564 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Molasses + flourtop 16% of all pairsSmell alikemoderateCooked together10,429 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Ginger + eggtop 33% of all pairsSmell alikelowCooked together7,337 recipes
Shared aroma: (e)-2-octenal (fatty, green).
Flour and egg barely smell alike, yet cooks put them together in 106,462 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 sweetness, dark color, and a moist, chewy body to the dough.
- Baking soda
- Reacts with the molasses's acidity to release gas, lightening the cakes.
- Ground ginger
- Provides the warm, spicy aroma that defines the cakes.
- Lard
- Adds fat for tenderness and a short, moist crumb.
- Flour
- Provides the structure that holds the dough together and sets as it bakes.
- Egg white
- Brushed on top, it helps the surface set and gives a glossy finish.
The step that matters
Dissolving the baking soda in the hot water. Baking soda must be fully dissolved and evenly mixed so it reacts evenly with the molasses. Clumps can leave bitter, soapy patches and uneven rising.
Swap the ginger
How well each one fits the dish's main ingredients (molasses, flour, egg):
- Jalapenofits better
- Cinnamonfits better
- Nutmegfits better
- Gingerthe original
Fit is the average pairing score against molasses, flour, egg. 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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