Skinnies are zero calorie cocktail mixers. You mix the powder with “one shot” of spirit (rum in this case) and 4 oz of club soda or water.
They’re as bad as you’d expect. Tastes a lot like those powdered packets you add to plain water to make flavored water, which is to say it tastes like bubbly water with a little booze and a powdery taste even after stirring. The ingredients are a mishmash of things like citric acid, sodium citrate, vegetable flavors, and coconut water extract.
I used a pretty good white rum from Three Rolls in an attempt to potentially save this but it was a lost cause.