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Roman Punch

A chilled lemon rum punch with sugar, champagne, and whipped cream topping.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Roman Punch

Why it works: Rum and champagne match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 137 recipes. Both carry ethyl isobutyrate, which smells fruity, ethereal. The science ↓

Roman Punch

Ingredients

Directions

Make the base

  1. Combine cold water, sugar, lemon juice, and lemon rind in a pot.

  2. Cook over medium heat until the sugar dissolves, then cool the mixture.

Freeze and serve

  1. Pour the cooled mixture into a freezer and freeze until solid.

  2. Twenty minutes before serving, stir in the rum and champagne or maraschino.

  3. Serve in cups topped with whipped cream.

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. Rum + champagnetop 2% of all pairs
    Smell alikestrong
    Cooked together137 recipes

    Shared aroma: ethyl isobutyrate (fruity, ethereal).

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

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

  3. Lemon + champagnetop 13% of all pairs
    Smell alikelow
    Cooked together404 recipes

    Shared aroma: 1-octen-3-ol (mushroom, earthy).

  4. Sugar + rumtop 14% of all pairs
    Smell alikelow
    Cooked together2,908 recipes

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

  5. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

Sugar and lemon 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

Sugar
Adds sweetness and, dissolved in water, lowers the freezing point so the punch stays slushy rather than rock-hard.
Lemon juice
Adds acidity that balances the sweetness and brightens the flavour.
Rum
Adds aroma and flavour, and its alcohol keeps the frozen mixture softer.
Champagne or maraschino
Adds aroma and a light sparkle or sweet almond note to the punch.

The step that matters

Freezing until solid. Sugar and alcohol lower the freezing point, so the mixture stays partly slushy. Freezing it fully hard, or stirring in the rum and champagne too early, changes the texture and dulls the aroma.

Swap the lemon

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

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

Fit is the average pairing score against sugar, rum, champagne, cream. 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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