Begin by boiling 1 cup of water until it's steaming hot but not boiling. In a mixing bowl, sprinkle 1 packet of unflavored gelatin over the hot water, whisking continuously until fully dissolved, about 2-3 minutes.

Next, pour in ½ cup of your chosen juice, stirring gently for another 1-2 minutes until everything is well combined.

Pour the gelatin mixture into a snugly sealed container or individual serving cups, leaving some space at the top.

Refrigerate your mixture for 2-4 hours until firm to the touch.

Pour any remaining mixture into an ice cube tray to freeze for about 4-6 hours.

Store any leftovers in a covered container in the fridge for up to 3 days.