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Dessert

Milk Frosting

Milk frosting is a sweet glaze made by boiling sugar, milk, and butter, then cooling and beating until spreadable.

From an old cookbook · modernised transcription
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Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Milk Frosting

Ingredients

Directions

Cook the mixture

  1. Combine sugar, milk, and butter in a saucepan.

  2. Boil until the mixture becomes waxy.

  3. Remove from heat and add flavoring to taste.

Beat and spread

  1. Beat the mixture while cooling until thick enough to spread.

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. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

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

    Shared aroma: guaiacol (smoky, sweet).

  3. Sugar + milktop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

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

Sugar and milk barely smell alike, yet cooks put them together in 77,875 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

Granulated sugar
Provides sweetness and, as it crystallizes during cooling, the frosting's body.
Milk
Supplies liquid that dissolves the sugar and gives the frosting a creamy texture.
Butter
Adds fat that softens the frosting and makes it smoother on the palate.

The step that matters

Boil until the mixture becomes waxy. Boiling concentrates the sugar, and how far it goes sets how firm the frosting will be. Beating while it cools encourages fine sugar crystals to form, which gives a smooth, spreadable texture rather than a grainy one.

“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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