1 1/2 oz of Gin
1 oz of Triple Sec
1 tsp of sugar
1/2 oz of blue curacao liqueur
4 1/2 oz of 7-up soda (or Sprite)
1 slice of lime
1/2 oz of Lime Juice
Shake everything but blue curacao, 7-up and sugar in a shaker with ice. Strain into a collins glass filled with ice cubes. Stir in sugar and fill with 7-up. Drop the blue curacao into the center of the drink and serve without stirring.