Prepare the Simple Syrup: If you haven't purchased a premade simple syrup, you’ll need to make your own. Heat equal parts sugar and water in a saucepan until the sugar is fully dissolved. Let it cool.
Juice the Limes: Fresh lime juice truly enhances the cocktail, so don’t skip this step. Juice enough limes to get one cup of fresh lime juice.
Mix the Liquids: In a large pitcher or punch bowl, combine the lime juice, simple syrup, light rum, dark rum, pineapple juice, orange juice, and grenadine.
Add Ice & Fruit: Stir in a generous amount of ice cubes and mix well. Add slices of freshly cut fruit like oranges, limes, and pineapples. These not only add flavor but also make the drink look beautiful.
Add Bitters: A dash of Angostura bitters can give a slight complexity to your punch and balance the flavors.
Serve & Enjoy: Pour the punch into individual glasses, add an extra ice cube or two, and garnish with a fruit slice on the rim. Now, you’re ready to impress your guests—or yourself!