Muddle lemon, then peach, then gently muddle mint in large tumbler. Fill halfway with crushed ice, add brandy and bourbon and stir till chilled. Garnish with bitters, peach slice and sprig of mint.
Mint bitters are a bit intense. Use at your discretion.
Many similarly named cocktails were created in the past few years, but now that it's all fading away I'm just left with a bitter taste in my mouth.