Name: Washington Taffy
Ingredients: 2 quarts New Orleans molasses; 2 pounds sugar; 2 pounds glucose; ½ pound butter; 3 ounces paraffin (or substitute); 1 quart cream; ½ ounce oil of lemon; ½ ounce vanilla

Why it works: Butter and cream are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓

Washington Taffy

Ingredients

Directions

Cook the base

In a large pot, combine molasses, sugar, glucose, butter, paraffin, and cream.
Cook the mixture over medium heat until it reaches 252°F to 254°F.

Pull and flavor

Pour the cooked mixture onto a slab.
Fold the mixture and pull it on a hook.
Flavor the taffy with oil of lemon and vanilla.

Cut and wrap

Cut into five-cent pieces or shape into kisses and wrap in wax paper.

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.

Butter + creamtop 8% of all pairs

Smell alikemoderate

Cooked together41,516 recipes

Shared aroma: delta-dodecalactone (sweet, creamy).
Sugar + vanillatop 8% of all pairs

Smell alikelow

Cooked together35,032 recipes

Shared aroma: beta-damascenone (apple, rose).
Sugar + creamtop 9% of all pairs

Smell alikemoderate

Cooked together43,450 recipes

Shared aroma: 2,3-butanedione (butter, sweet).
Molasses + sugartop 11% of all pairs

Smell alikemoderate

Cooked together9,225 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Butter + vanillatop 14% of all pairs

Smell alikemoderate

Cooked together20,050 recipes

Shared aroma: guaiacol (smoky, sweet).

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

Molasses: Adds deep flavour, dark colour and sweetness, plus a chewy body.
Sugar: Provides sweetness and, once cooked, the sugar structure that sets the taffy's firmness.
Glucose: Interferes with sugar crystallization, keeping the taffy smooth rather than grainy.
Butter: Adds fat for a softer bite and richer mouthfeel.
Cream: Adds moisture and milk fat, giving a softer, creamier texture.

The step that matters

Cooking to 252°F to 254°F. The final temperature sets how much water remains, which determines firmness once cooled. Undercooking leaves the taffy soft and sticky, while overcooking makes it hard and brittle. Check the temperature carefully before pouring.

Swap the lemon

How well each one fits the dish's main ingredients (molasses, sugar, butter, cream, vanilla):

Figfits better
Strawberryfits better
Peachfits better
Lemonthe original

Fit is the average pairing score against molasses, sugar, butter, cream, vanilla. 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.