Ingredients:

4 ounces Bourbon Whiskey 
4 to 6 sprigs of mint 
2 sugar cubes 

Preparation:

Put Bourbon, Mint, and Sugar into the bottom of a cocktail shaker. Muddle to dissolve sugar and blend mint leaves. Let stand for a bit to help release the mint flavor. Add ice, and shake well to chill, then strain into a glass filled with shaved ice.