The classic cocktail comprises white rum, cream of coconut or coconut milk, and pineapple juice. Cream of coconut refers to sweetened and thickened coconut milk. The ratio is normally as follows: 1 oz (1 part) coconut cream, 1 oz (1 part) white rum, and 3 oz (3 parts) pineapple juice. Virgin pina colada or piñita colada on the other hand, is basically pina colada, minus the rum.