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Dessert

Butter Scotch

A brittle candy made from sugar, molasses, butter, vinegar, and water, flavored with vanilla.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Sugar and vanilla are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 35,032 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Butter Scotch

Ingredients

Directions

Make the candy

  1. Combine sugar, vinegar, molasses, boiling water, and butter in a saucepan.

  2. Boil the mixture until it becomes brittle when tested in cold water.

  3. Remove from heat and add vanilla extract.

Set and cut

  1. Pour into a well-buttered pan.

  2. Allow to cool, then cut 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.

  1. Sugar + vanillatop 8% of all pairs
    Smell alikelow
    Cooked together35,032 recipes

    Shared aroma: beta-damascenone (apple, rose).

  2. Sugar + molassestop 11% of all pairs
    Smell alikemoderate
    Cooked together9,225 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  3. Butter + vanillatop 14% of all pairs
    Smell alikemoderate
    Cooked together20,050 recipes

    Shared aroma: guaiacol (smoky, sweet).

  4. Sugar + vinegartop 15% of all pairs
    Smell alikemoderate
    Cooked together20,806 recipes

    Shared aroma: beta-damascenone (apple, rose).

  5. Sugar + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 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

Sugar
Provides sweetness and forms the brittle candy structure as it cooks.
Molasses
Adds depth of flavour and colour, and some moisture to the candy.
Butter
Adds richness and fat, softening the texture of the candy.
Vinegar
Adds a small amount of acidity that helps prevent sugar from crystallising.

The step that matters

Boiling until brittle. The candy sets hard only when the sugar is cooked to the hard-crack stage. Undercooked mixtures stay sticky, while overcooked sugar can taste burnt, so testing in cold water matters.

Swap the vanilla

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

  1. Vanillathe original
  2. Figfits about as well
  3. Raisinfits about as well
  4. Applefits about as well

Fit is the average pairing score against sugar, vinegar, molasses, 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.

More butter scotch recipes

Pie 26Candy 12brittle 4Filling 3Squares 3 See all 152 →

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