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Dessert

Plain Frosting

A simple frosting made with boiling water or milk, lemon juice or cocoa, icing sugar, flavoring, and optional fruit juice.

From an old cookbook · modernised transcription
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Plain Frosting

Why it works: Milk and lemon are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 19,053 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Plain Frosting

Ingredients

Directions

  1. In a bowl, combine boiling water or milk with lemon juice or cocoa.

  2. Gradually add sifted icing sugar until the mixture is easy to spread.

  3. Stir in the flavoring.

  4. If desired, substitute fruit juice for the water.

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.

Photo for illustrative purposes only · Contact us to use it

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 + lemontop 15% of all pairs
    Smell alikemoderate
    Cooked together19,053 recipes

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

  2. Lemon + sugartop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

  3. Milk + sugartop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

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

Lemon and sugar 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

Icing sugar
Provides the sweetness and bulk that thicken the liquid into a spreadable frosting.
Boiling water or milk
Supplies the liquid that dissolves the sugar and sets the frosting's spreading consistency.

The step that matters

Gradually add sifted icing sugar. Adding sugar all at once can make the frosting too stiff or lumpy. Adding it slowly and sifting it helps the sugar dissolve smoothly and lets you stop once the frosting spreads easily.

Swap the lemon

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

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

Fit is the average pairing score against milk, sugar. 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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