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 ↓
Molasses Candy
Ingredients
Directions
Cook the candy
In a saucepan, combine molasses, brown sugar, butter, and lemon juice or vinegar.
Boil the mixture until it hardens immediately when dripped in cold water.
Stir in a pinch of baking soda until thoroughly mixed.
Set and pull
Pour the mixture onto buttered tins.
Once cool, pull the candy quickly using your fingers, avoiding too much pressure to keep it airy.
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 + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Molasses + buttertop 30% of all pairsSmell alikelowCooked together8,123 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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
- Provides the dark color, deep flavor, and moisture that give the candy its character.
- Brown sugar
- Adds sweetness and helps the candy set firm as the sugar concentration rises.
- Butter
- Adds fat that softens the texture and makes the candy less brittle.
- Lemon juice or vinegar
- Adds acidity that helps prevent sugar from crystallizing, keeping the candy smooth.
- Baking soda
- Reacts with the acid to release gas, lightening the candy and making it airy.
The step that matters
Boil until it hardens in cold water. The cold-water test checks how much water has boiled off. Stop too early and the candy stays sticky; go too far and it turns brittle and hard to pull.
Swap the lemon
How well each one fits the dish's main ingredients (molasses, sugar, butter):
- Vanillafits better
- Raisinfits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against molasses, sugar, butter. 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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