Blue Bayou

As the name implies, this drink is blue which makes it great for hot summer days by default.  But the fruity and exotic taste of pineapples and grapefruit certainly do their part in making this one of the definite cool-down drinks.

1 cup of ice
30 ml (6 parts) vodka
15 ml (3 parts) Blue Curacao
30 ml (6 parts) pineapple juice
30 ml (6 parts) grapefruit juice

Preparation:

1. Pour the ingredients into a blender, blend until smooth.
2. Serve in a chilled highball glass.
3. If the drink it too sweet/bitter, experiment with the pineapple/grapefruit ratio.

http://randomlists.co/cocktails-for-summer/