Searching for a pineapple and rum cocktail recipe...

[2ndhandsunshine]

And Google has not helped despite my certainty that I came across this recipe on the internet. About six months or so ago, I made this drink that contained pineapple, rosemary, and rum, but what made it special (and what eludes my Google-fu) is that rather than just pineapple juice, I had to peel, core, and boil a whole pineapple (almost certainly with some sugar), let steep the rosemary, and then add the rum. I'm fairly certain the original recipe called for two or three different types of rum (gold and dark, iirc, and maybe something else), but I only used gold. I'm also fairly certain that these were the only ingredients, but I can't be fully sure. I think at the end I added some club soda to the mix, but I don't believe this was called for in the recipe itself.

Does this cocktail sound familiar to anyone at all?

I think I could muddle my way through the process by memory, but I'd prefer to consult the recipe for proper proportions.

Any help would certainly be appreciated! I'd love to serve this drink at a dinner and for Mother's Day lunch. Thanks in advance.