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Roman Punch

A chilled punch made with water, cream, lemon juice, brandy, rum, and sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Roman Punch

Why it works: Brandy and rum are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 1,058 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Roman Punch

Ingredients

Directions

  1. Freeze the water before adding the cream.

  2. Mix in the cream and freeze again.

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. Brandy + rumtop 5% of all pairs
    Smell alikemoderate
    Cooked together1,058 recipes

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

  2. Cream + sugartop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

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

  3. Rum + sugartop 14% of all pairs
    Smell alikelow
    Cooked together2,908 recipes

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

  4. Cream + brandytop 16% of all pairs
    Smell alikelow
    Cooked together2,635 recipes

    Shared aroma: 2-heptanol (bitter, floral).

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

Cream
Adds richness and a smooth, creamy texture to the frozen mixture.
Lemon juice
Provides acidity that brightens the flavour and balances the sweetness.
Brandy
Adds aroma and lowers the freezing point, keeping the punch softer when frozen.
Rum
Adds aroma and depth of flavour and also lowers the freezing point.

The step that matters

Freezing the water before adding the cream. Freezing the water first creates an icy base so the cream can be folded in without melting everything. Alcohol and sugar lower the freezing point, so the mixture stays slushy rather than solid, which is why its strength and sweetness matter.

Swap the lemon

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

  1. Vanillafits better
  2. Pineapplefits better
  3. Apricotfits better
  4. Lemonthe original

Fit is the average pairing score against cream, brandy, rum, 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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