Spiked Peach Limeade Granita

Ingredients:

• 4 cups water
• 3 cups peach slices (about 3 medium)
• 1 1/3 cups sugar
• 6 mint leaves
• 1 1/3 cups fresh lime juice
• 3/4 cup rum
• Peach slices (optional)
• Fresh mint sprigs (optional)

Source