1/4 cup fresh mint leaves, plus mint sprigs for garnish
2 cups bourbon
1 cup good-quality dry ginger ale
Muddle the peaches, sugar and mint leaves in a small pitcher. Stir in the bourbon and let sit for 15 minutes. Fill four tall glasses with crushed ice. Strain the peach-bourbon mixture into the glasses and top off with the ginger ale. Serve garnished with mint sprigs.