The piña colada: Spanish: piña [ˈpiɲa], “pineapple”, and colada [koˈlaða], “strained”) is a cocktail made with rum, cream of coconut or coconut milk, and pineapple juice, usually served either blended or shaken with ice. It may be garnished with either a pineapple wedge, maraschino cherry, or both There are two versions of the drink, both originating in Puerto Rico.

The earliest known story states that in the 19th century, Puerto Rican pirate Roberto Cofresí, to boost his crew’s morale, gave them a beverage or cocktail that contained coconut, pineapple and white rum. This was what would be later known as the famous piña colada. With his death in 1825, the recipe for the piña colada was lost.

There are many recipes for piña colada. The International Bartenders Association specifies it is:

(5 parts) 5 cl (1.7 US fl oz) white rum
(3 parts) 3 cl (1.0 US fl oz) coconut cream
(5 parts) 5 cl (1.7 US fl oz) pineapple juice
Mix with crushed ice in blender until smooth, then pour into a chilled glass, garnish and serve. Alternately, the three main components can simply be added to a cocktail glass with ice cubes.

In San Juan, Puerto Rico the recipe is:

1 US fl oz (3.0 cl) heavy cream
6 US fl oz (18 cl) frozen freshly pressed pineapple juice
1 US fl oz (3.0 cl) cream of coconut
2 US fl oz (5.9 cl) rum
Freeze pineapple juice before use. In a blender, combine cream of coconut, frozen pineapple juice, heavy cream and rum. Pour in a desired 12-ounce container and use a cherry and fresh pineapple for a garnish.

In 1978, Puerto Rico proclaimed the cocktail its official drink.

Information and Image gathered from Wikipedia