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Roman Punch

A citrusy rum punch made with lemons, sugar, boiling water, and Jamaica rum.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Roman Punch

Why it works: Sugar and rum are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 2,908 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Roman Punch

Ingredients

Directions

Prepare the lemons

  1. Wash and wipe the lemons. Peel off the yellow skin thinly and place it in a punch bowl.

  2. Remove the white skin, which is bitter, and discard it.

  3. Cut the lemons in half and squeeze the juice into the bowl. Remove the seeds and add the squeezed lemon halves to the bowl.

  4. Add the sugar and rub it into the lemons for a few minutes.

Make the punch

  1. Pour in the boiling water and let it cool.

  2. Strain the mixture through a fine sieve into the punch bowl.

  3. Add the rum and slice two lemons into the punch bowl.

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

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

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

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

  3. Lemon + rumtop 19% of all pairs
    Smell alikemoderate
    Cooked together1,341 recipes

    Shared aroma: alpha-pinene (pine, turpentine).

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

Lemons
Provide the juice and aromatic peel that flavour the punch with acidity and fragrance.
White granulated sugar
Sweetens the punch and balances the sharp acidity of the lemon juice.
Jamaica rum
Adds alcohol and strong aroma, giving the punch its character.

The step that matters

Rubbing the sugar into the lemon peel. Rubbing sugar into the peel draws aromatic oils out of the zest into the sugar, so the punch gets more lemon fragrance. Skipping or rushing this step leaves the flavour flatter.

Swap the lemon

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

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

Fit is the average pairing score against sugar, rum. 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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