Name: Chocolate Caramels
Ingredients: 1 cup sugar; ½ cup molasses; ½ cup milk; 2 tablespoons butter; 1 teaspoon cornstarch; 4 ounces chocolate

Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Chocolate Caramels

Ingredients

Directions

The book gives no oven temperature. The 240°F in the steps was added when the recipe was transcribed, as a starting point.

Make the caramel

In a saucepan, combine sugar, molasses, milk, and butter.
Heat over medium heat, stirring until the mixture boils.
Continue to cook without stirring until it reaches the soft ball stage (about 240°F or 115°C).

Finish and set

Remove from heat and stir in cornstarch and chocolate until melted and smooth.
Pour into a greased pan and let cool before cutting into squares.

Recipe from a historical cookbook (Internet Archive).

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.

Milk + buttertop 7% of all pairs

Smell alikemoderate

Cooked together81,283 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Sugar + molassestop 11% of all pairs

Smell alikemoderate

Cooked together9,225 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Sugar + chocolatetop 13% of all pairs

Smell alikemoderate

Cooked together15,404 recipes

Shared aroma: guaiacol (smoky, sweet).
Milk + chocolatetop 13% of all pairs

Smell alikemoderate

Cooked together9,128 recipes

Shared aroma: gamma-nonanolactone (coconut, sweet).
Butter + chocolatetop 16% of all pairs

Smell alikemoderate

Cooked together10,543 recipes

Shared aroma: delta-decalactone (sweet, creamy).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Sugar: Provides sweetness and, when cooked, the caramel base that sets the candy.
Molasses: Adds depth, color, and a chewier texture through its sugars and moisture.
Milk: Adds dairy solids and water that create a softer, creamier caramel.
Butter: Adds fat for a smooth, tender bite and rich flavor.
Cornstarch: Thickens the mixture so the caramel sets firm rather than runny.
Chocolate: Adds richness and flavor while blending into the caramel for a smooth finish.

The step that matters

Cooking to the soft ball stage without stirring. Sugar syrup must reach about 240°F to set into a chewy rather than hard or runny candy. Stirring can cause sugar crystals to form, leading to grainy caramels, so the mixture should be left alone once it boils.

“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.