Shake handedly with ice, double strain to old fashioned up... or over a single large ice cube if you want to extend it out a bit.
Very easy to drink. Reminds me of a cross between a Kingston Negroni and a Jungle Bird. Strong, sweet (but not too sweet depending on the ripeness of the pineapple), velvety, bitter back end, complex.
The cocktail's name is a riff on the Paper Plane. Patwa (aka Patois or Patwah) refers to Jamaican Creole, and sounds like 'paper.' Mokulele is Hawaiian for 'plane' or 'island hopper'.