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 ↓
Loaf 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.
Make the batter
Warm the molasses and mix in the butter.
Let the mixture cool, then stir in the eggs.
Add the flour, chopped currants or cherries, and sugar.
Mix in the baking soda touched with vinegar.
Flavor with your choice of extract or spice.
Bake
Pour the batter into a greased loaf pan.
Bake in a moderate oven at 350°F (175°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 + 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).
-
Currant + vinegartop 13% of all pairsSmell alikelowCooked together693 recipes
Shared aroma: isoamyl acetate (banana, pear).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
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, slightly bitter sweetness.
- Butter
- Adds fat for tenderness and a rich mouthfeel in the crumb.
- Eggs
- Bind the batter and add structure as the loaf sets in the oven.
- Flour
- Provides the main structure that holds the loaf together as it bakes.
- Baking soda
- Reacts with the vinegar and molasses acidity to produce gas that lifts the loaf.
- Sugar
- Adds sweetness and helps the crumb brown during baking.
The step that matters
Mixing in the baking soda. Baking soda needs an acid to react and release gas. Touching it with vinegar before adding it lets the gas form in the batter, so the loaf rises instead of staying dense.
Swap the currant
How well each one fits the dish's main ingredients (molasses, butter, egg, flour, sugar, vinegar):
- Raisinfits better
- Vanillafits better
- Figfits better
- Currantthe original
Fit is the average pairing score against molasses, butter, egg, flour, sugar, vinegar. 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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