- 1 fluid ounce vodka (such as Absolut®)
- 1 fluid ounce Blue Curacao
- 2 fluid ounces sweet and sour mix
- ice cubes, as needed
- 1 splash lemon-lime soda (such as 7-Up®)
- Pour the vodka, Blue Curacao, and sweet and sour mix to a cocktail shaker filled with ice; shake to chill.
- Fill a collins glass with ice; strain the vodka mixture into the glass. Top with a splash of lemon-lime soda.