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Dessert

Hard Sauce

A sweet butter and powdered sugar sauce with vanilla, brandy or lemon juice.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Sugar and vanilla are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 35,032 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Hard Sauce

Ingredients

Directions

Prepare the butter

  1. Wash the butter in cold water until elastic.

  2. Place the butter in a bowl and cream it until light.

Make the sauce

  1. Gradually add the powdered sugar while beating continuously.

  2. Mix in the vanilla and then gradually add the brandy.

Chill and serve

  1. Transfer to a serving dish and chill until ready to serve.

  2. Optionally, serve with fresh strawberries or a sprinkle of nutmeg on top.

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

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

  2. Vanilla + brandytop 11% of all pairs
    Smell alikemoderate
    Cooked together806 recipes

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

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

    Shared aroma: guaiacol (smoky, sweet).

  4. Vanilla + lemontop 15% of all pairs
    Smell alikemoderate
    Cooked together5,961 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  5. Butter + brandytop 15% of all pairs
    Smell alikemoderate
    Cooked together5,127 recipes

    Shared aroma: ethyl octanoate (fruity, wine).

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

Butter
Provides richness and a smooth body, and creaming it traps air for a light texture.
Powdered sugar
Adds sweetness and dissolves smoothly into the fat for a fine, creamy texture.
Vanilla
Adds aroma that rounds out the sweet, rich flavor.
Brandy
Adds a warm, aromatic flavor note to the sauce.

The step that matters

Adding the powdered sugar gradually while beating. Sugar blended into softened butter a little at a time dissolves evenly and keeps the mixture smooth and airy. Adding it all at once can leave grainy lumps and a dense, uneven texture.

Swap the lemon

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

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

Fit is the average pairing score against butter, sugar, vanilla, brandy. 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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