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Dessert

Butter Scotch

A brittle made from brown sugar, butter, cold water, and lemon juice.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Butter and lemon are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 41,227 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Butter Scotch

Ingredients

Directions

Make the brittle

  1. In a saucepan, combine the brown sugar, butter, and cold water.

  2. Bring the mixture to a boil and cook until it becomes brittle when dropped in cold water.

  3. Just before pouring into buttered pans, add the lemon juice.

Cool and mark

  1. Allow to cool slightly, then mark 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. Butter + lemontop 16% of all pairs
    Smell alikemoderate
    Cooked together41,227 recipes

    Shared aroma: 3-hexenal (apple, fruity).

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

    Shared aroma: guaiacol (smoky, sweet).

  3. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

    Shared aroma: 2-nonenal (fatty, green).

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

Light brown sugar
Provides the sweetness and the caramel flavor and forms the brittle's hard, glassy structure as it cooks.
Butter
Adds richness and fat, giving the brittle a smooth texture and a buttery flavor.
Lemon juice
Adds a little acidity that brightens the sweetness and helps keep the sugar from crystallizing.

The step that matters

Cooking to the brittle stage. Sugar syrup must reach the right temperature to set hard when cooled. Pulling it off the heat too early leaves a chewy, sticky candy, while cooking too long can scorch the sugar and give a bitter taste.

Swap the lemon

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

  1. Vanillafits better
  2. Figfits better
  3. Peachfits better
  4. Lemonthe original

Fit is the average pairing score against 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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