Why it works: Orange and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Roman Punch
Ingredients
Directions
Make the base
Brew strong black tea and let it cool.
In a large bowl, mix the sugar, tea, brandy, rum, orange juice, and lemon juice until the sugar dissolves.
Pour the mixture into a container and freeze.
Serve
Once frozen, serve in glasses and top with champagne.
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.
-
Orange + lemontop 1% of all pairsSmell alikestrongCooked together10,634 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Rum + champagnetop 2% of all pairsSmell alikestrongCooked together137 recipes
Shared aroma: ethyl isobutyrate (fruity, ethereal).
-
Brandy + rumtop 5% of all pairsSmell alikemoderateCooked together1,058 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Brandy + champagnetop 5% of all pairsSmell alikemoderateCooked together169 recipes
Shared aroma: ethyl cinnamate (sweet, balsamic).
-
Rum + orangetop 12% of all pairsSmell alikemoderateCooked together801 recipes
Shared aroma: beta-damascenone (apple, rose).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Loaf sugar
- Dissolves into the liquid to add sweetness that balances the citrus and alcohol.
- Strong black tea
- Adds tannin and a dry, slightly bitter note that gives the punch depth.
- Brandy
- Adds alcohol and aroma; alcohol also keeps the frozen mixture from freezing solid.
- Rum
- Adds body and aroma, with alcohol that softens the ice texture.
- Champagne
- Adds sparkle and a light, fresh finish when poured over the frozen base.
- Lemon juice
- Adds acidity that brightens the punch and balances the sugar.
The step that matters
Dissolving the sugar fully before freezing. Undissolved sugar stays gritty and uneven as the mixture freezes. Stirring until clear gives a smooth, evenly sweetened base.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, black tea, brandy, rum, champagne, orange):
- Vanillafits better
- Pineapplefits better
- Apricotfits better
- Lemonthe original
Fit is the average pairing score against sugar, black tea, brandy, rum, champagne, orange. 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Orange Syrup47 recipes
Lemon Whey33 recipes
Lemon Wine31 recipes
Orange Water Ice28 recipes