- 3 cups tropical fruit juice blend (such as pineapple-orange-passion fruit)
- 4 1/2 tablespoons sugar
- 1 1/2 tablespoons dark rum
- 1 tablespoon fresh lime juice
- 3/4 teaspoon vanilla extract
- Stir juice and sugar in large bowl until sugar dissolves. Add rum, lime juice and vanilla. Pour mixture into shallow baking dish. Freeze until mixture is entirely crystallized, stirring frequently and scraping crystals from around edges, about 5 hours. (Can be prepared 2 days ahead. Cover and keep frozen.)
- Using tines of fork, scrape frozen juice mixture to form small flakes. Spoon granita into goblets and serve.