1 1/2 oz of Lime Juice
1 oz of sugar syrup (or simple syrup)
1/2 oz of raspberry syrup
1/4 oz of grenadine syrup
3 oz of Sprite
Rim a wine glass with lime/caster sugar, add a spiral of lime, and fill with crushed ice. Stir lime juice and syrups together, and strain into the glass. Add the soda and sprinkle the grenadine on top.