Been having a few of these, and like magic, this video show up:
My Ratios are a little different.
2oz aged rum
3/4oz Grapefruit Juice
0.5oz Lime Juice
0.5oz Maraschino Liqueur
and I add a few dashes of Orange bitters just to give it a little more fruit notes.
No garnish, and no double-strain so it’s all frothy and cloudy.