Blend all the ingredients with ice in an electric blender, pour into a large glass, and serve with straws.
Note: Historically a few drops of fresh lime juice were added to taste. 4 slices of fresh pineapple can be used instead of juice.
Garnish with a slice of pineapple with a cocktail cherry.
Pina Colada | Original recipe of the International Bartenders Association (IBA)