Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓
Boston Caramels
Ingredients
Directions
Make the caramel
Combine grated chocolate, yellow sugar, molasses, milk, butter, and vanilla in a large pot.
Boil the mixture for about 25 minutes, stirring occasionally.
Check that the mixture is soft, not brittle.
Set and mark
Pour the mixture into buttered tins and mark deeply with a knife.
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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Milk + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
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Chocolate + vanillatop 5% of all pairsSmell alikemoderateCooked together10,020 recipes
Shared aroma: sotolon (curry, maple).
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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Sugar + molassestop 11% of all pairsSmell alikemoderateCooked together9,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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
- Grated chocolate
- Adds deep flavour and colour, and firms the mixture as it cools.
- Yellow sugar
- Provides sweetness and, as it dissolves and cooks, the body of the caramel.
- New orleans molasses
- Adds moisture, a darker colour and a rich, slightly bitter flavour.
- Milk
- Adds moisture and softness, giving the caramel a creamier texture.
- Butter
- Adds fat for a smooth, tender texture and helps keep the candy from sticking.
The step that matters
Check that the mixture is soft, not brittle. Sugar cooked past the soft stage becomes hard and brittle once cool. Testing for softness during boiling shows whether the candy has reached the right point for a chewy caramel.
“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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