Fill a tall glass almost to the top with ice cubes.
Add the vodka, Blue Curacao, and lime juice to your glass with ice (use your jigger to measure the ingredients).
Mix everything together using your long spoon from the Barillio kit, and then top your drink with a splash of sparkling water to taste. You could also use lemonade instead of sparkling water for a slightly sweeter version of this 80’s classic cocktail.
Finally, garnish with a wedge of fresh lime or a maraschino cherry.