Mango & Lime Frozen Yogurt
Note: This recipe requires an ice cream maker.
In a large mixing bowl, whisk all ingredients together until sugar completely dissolves. Churn mixture according to manufacturer's instructions. Serve right away as soft serve or transfer to an airtight container and harden in freezer for 4 to 5 hours (freezing in several smaller containers will greatly reduce hardening time). Garnish with lime zest to serve.