1. Make the ice ball: Fill a spherical ice mold [2] with water and freeze for two-and-a-half hours. Pop out of the mold, carefully drill a hole through the surface, then remove the water from inside with a syringe [3].

2. Make the cocktail: Fill a cocktail shaker with ice and add the vodka, juices, and simple syrup. Shake vigorously, and strain into a lowball glass.

3. Assemble the cocktail: Using the syringe again, carefully fill the ice ball with cocktail. Serve it in a coupe glass, garnished with the rosemary. Crack* (a gentle tap should do it) and drink!

*Use caution when hitting the ice ball, since breaking the glass could result in injury.