The Kick-off to the biggest annual party in my hometown of Louisville, Kentucky has officially begun. The 138th running of the Kentucky Derby is less than 3 weeks away. My city is about to be invaded with big hats and many mint juleps (the official libation of the Kentucky Derby) will be served. Home Sweet Home. If you want to feel like you are at the Derby, invite some friends over and try this recipe for an authentic Derby Mint Julep.