Combine bourbon, mint simple syrup and mint blueberry puree together and shake or stir well. Pour over crushed iced and serve with extra mint leaves.
mint simple syrup
Combine sugar, mint and water together in a small saucepan and heat over high heat until boiling, stirring constantly. Reduce heat to low and cook for another minute or so, then set aside to cool completely. Remove mint before using. You can do this ahead of time and store it in the fridge!
blueberry mint puree
In a mini food processor or blender, combine blueberries and mint simple syrup until pureed.