Grapefruit-Mint Granite

Directions

1. 1
   Combine the sugar and water in a small saucepan and place over high heat, stirring until the sugar dissolves.
2. 2
   Bring to a boil and boil without stirring for 1 minute.
3. 3
   Let cool.
4. 4
   Refrigerate syrup until cold.
5. 5
   Stir together the syrup, grapefruit juice, lemon zest, lemon juice and mint.
6. 6
   Put in a shallow nonreactive pan and place in the freezer.
7. 7
   Stir every 20 to 30 minutes until frozen throughout, about 3 hours.
8. 8
   Scrape into glasses and serve garnished with mint sprigs.