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Dessert

Soft Brown Boiled Icing

A boiled icing made from brown sugar, butter, cream, and vanilla flavoring.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Butter and cream are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓

Soft Brown Boiled Icing

Ingredients

Directions

Make the icing

  1. Combine the brown sugar, cream, and butter in a saucepan.

  2. Boil quickly while stirring well.

  3. When it begins to thicken, remove it from the heat.

Cool to consistency

  1. Stir the mixture while placing the pot in a pan of cold water until it reaches the proper consistency.

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 + creamtop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

  2. Sugar + vanillatop 8% of all pairs
    Smell alikelow
    Cooked together35,032 recipes

    Shared aroma: beta-damascenone (apple, rose).

  3. Sugar + creamtop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

    Shared aroma: 2,3-butanedione (butter, sweet).

  4. Butter + vanillatop 14% of all pairs
    Smell alikemoderate
    Cooked together20,050 recipes

    Shared aroma: guaiacol (smoky, sweet).

  5. Cream + vanillatop 15% of all pairs
    Smell alikelow
    Cooked together12,301 recipes

    Shared aroma: 2-nonanone (fruity, floral).

Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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

Brown sugar
Provides the main sweetness and molasses flavor, and its sugar sets the icing's body as it cools.
Cream
Adds moisture and richness and helps dissolve the sugar into a smooth mixture.
Butter
Adds fat for a softer texture and a rounder, richer mouthfeel.

The step that matters

Stir while cooling in cold water. Stirring as the pot cools controls sugar crystal formation. Stop stirring too early and the icing can set grainy or hard; stirring too long can leave it stiff before it is spreadable.

“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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