from The Craft of the Cocktail
Strip the leaves from one sprig of mint and muddle them together with the peach brandy and peach wedges. Add the Cognac and shake. Strain into a highball glass filled with crushed ice and stir until the outside of the glass frosts, adding more crushed ice if necessary. Garnish with the second sprig of mint.
Variation: Of course, you can substitute bourbon in place of Cognac.