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Dessert

Peanut Brittle

A sweet brittle made with brown sugar, baking soda, and peanuts.

From an old cookbook · modernised transcription
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Why it works: Sugar and peanut are a kitchen classic. They rank in the top 27% of all ingredient pairs, and cooks put them together in 2,545 recipes. Both carry guaiacol, which smells smoky, sweet. The science ↓

Peanut Brittle

Ingredients

Directions

Make the brittle

  1. In a saucepan, melt the brown sugar over medium heat.

  2. Once melted, stir in the baking soda until well combined.

  3. Pour the mixture over the peanuts and mix thoroughly.

Set and break

  1. Spread the mixture onto a greased baking sheet and let it cool before breaking into pieces.

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 + peanuttop 27% of all pairs
    Smell alikelow
    Cooked together2,545 recipes

    Shared aroma: guaiacol (smoky, sweet).

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

What each ingredient does

Brown sugar
Melts to form the caramel base that hardens into the brittle's crisp, sweet structure.
Baking soda
Reacts with the hot sugar mixture to create gas bubbles, lightening the texture so it breaks more easily.
Peanuts
Provide the crunchy body and nutty flavor held together by the set caramel.

The step that matters

Stir in the baking soda until well combined. Baking soda reacts quickly with the hot sugar, so it must be stirred in promptly and evenly. Uneven mixing leaves dense pockets and pale patches, while the bubbles it produces give the brittle its light, brittle texture.

“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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