Add cream of coconut and pineapple juice (and rum, if using) to your mason jar with ice and shake vigorously for 10-15 second.
Strain over fresh ice.
Then top off to fill glass with sparkling coconut water. Enjoy with a pineapple wedge and umbrella.
Notes
The nutrition facts presented here are estimates only. The brands you use and product types chosen can change the nutritional information presented. To obtain the most accurate nutritional information, you should calculate the nutritional information with the actual ingredients you use.