First, I drop the mint leaves into the cocktail shaker with the simple syrup and lime juice.
I muddle them gently—enough to release the minty oils, but not so much that the leaves get shredded.
If I’m using fresh pineapple, I add the chunks and muddle those with the mint too.
Then in goes the white rum and pineapple juice.
I toss in a handful of ice cubes, pop the lid on, and shake the whole thing for maybe 15 seconds. It should be cold and well mixed.
Using a strainer, I pour it into a tall glass filled with fresh ice.
To finish it off, I’ll usually throw on a pineapple slice and a little mint sprig.
Sometimes I use a straw, sometimes not—it’s up to you.