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Dessert

Foaming Sauce

A sweet sauce made by creaming butter, sugar, and boiling water.

From an old cookbook · modernised transcription
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Why it works: Butter and sugar are a kitchen classic. They rank in the top 17% of all ingredient pairs, and cooks put them together in 98,233 recipes. Both carry guaiacol, which smells smoky, sweet. The science ↓

Foaming Sauce

Ingredients

Directions

  1. Beat the butter to a cream.

  2. Add the sugar and stir until white and foaming.

  3. Just before serving, pour the boiling water on the mixture and stir for a moment.

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 + sugartop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 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

Butter
Creamed with sugar to trap air, giving the sauce a rich, smooth body.
Granulated sugar
Creamed with butter to form a light, foamy base and add sweetness.
Boiling water
Poured in at the end to loosen the mixture into a fluid, foamy sauce.

The step that matters

Adding the boiling water just before serving. Boiling water must be added at the last moment so the sauce stays foamy and does not collapse or separate while it waits.

“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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