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 ↓
Molasses Cake
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. The book gives no cooking times; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Make the batter
Dissolve the baking soda in 1 tablespoon of boiling water and add it to the molasses.
Stir in the melted lard, boiling water, ginger, and flour.
Beat the mixture until smooth.
Bake
Pour into a greased baking pan and bake at 350°F (175°C) for about 30 minutes.
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.
Photo for illustrative purposes only · Contact us to use it
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.
-
Molasses + gingertop 14% of all pairsSmell alikelowCooked together4,116 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Flour + gingertop 15% of all pairsSmell alikemoderateCooked together8,564 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Molasses + flourtop 16% of all pairsSmell alikemoderateCooked together10,429 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Molasses
- Adds sweetness, moisture, and deep flavor, and its acidity reacts with the baking soda.
- Baking soda
- Reacts with the molasses's acid to release gas, helping the cake rise and darken.
- Flour
- Provides the structure that holds the cake together as it sets.
- Lard
- Adds fat that tenderizes the crumb and carries flavor.
- Ginger
- Contributes the warm, spicy aroma that defines the cake.
The step that matters
Dissolving the baking soda before adding it to the molasses. Baking soda needs to be fully dissolved so it spreads evenly through the molasses. Pockets of undissolved soda can cause uneven rising and bitter spots, and the gas released by its reaction with the molasses acid gives the cake its lift.
Swap the ginger
How well each one fits the dish's main ingredients (molasses, flour):
- Jalapenofits better
- Cinnamonfits better
- Allspicefits about as well
- Gingerthe original
Fit is the average pairing score against molasses, 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.
More molasses cake recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Ginger Cookies213 recipes
Molasses Cookies96 recipes
Ginger Cake93 recipes
Soft Ginger Bread85 recipes