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Sauce

Transparent Sauce

A clear sauce made from powdered sugar, butter, egg yolk, water, and flavoring.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Butter and nutmeg are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 24,377 recipes. Both carry eucalyptol, which smells eucalyptus, herbal. The science ↓

Transparent Sauce

Ingredients

Directions

  1. Cream the butter and powdered sugar together.

  2. Add the beaten egg yolk and stir well.

  3. Heat the mixture over medium heat, stirring until it boils.

  4. Add nutmeg, lemon, or vanilla extract to taste.

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 + nutmegtop 16% of all pairs
    Smell alikemoderate
    Cooked together24,377 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  2. Butter + eggtop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

  3. Egg + nutmegtop 17% of all pairs
    Smell alikelow
    Cooked together24,744 recipes

    Shared aroma: acetic acid (sour, vinegar).

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

    Shared aroma: guaiacol (smoky, sweet).

  5. Sugar + nutmegtop 20% of all pairs
    Smell alikelow
    Cooked together23,364 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

Egg and nutmeg barely smell alike, yet cooks put them together in 24,744 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

Powdered sugar
Adds sweetness and dissolves smoothly into the sauce, giving it body.
Butter
Adds fat for richness and a smooth, silky mouthfeel.
Egg yolk
Its proteins thicken the sauce as it heats and help bind the fat and water together.
Water
Thins the mixture to a pourable consistency.

The step that matters

Heat the mixture over medium heat, stirring until it boils. Egg yolk proteins set when heated, so heat that is too high or unstirred can scorch the base or curdle it. Steady stirring over medium heat spreads the heat evenly and keeps the sauce smooth as it thickens.

Swap the nutmeg

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

  1. Cinnamonfits about as well
  2. Nutmegthe original
  3. Capersfits less well
  4. Parsleyfits less well

Fit is the average pairing score against sugar, butter, egg. 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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