Stir together first 3 ingredients until blended. Cover and chill 8 hours.
Shape mixture into 1-inch balls. Gently press pecan halves into 2 sides of each ball. Chill 8 hours.
Melt chocolate and shortening in a saucepan over medium heat. Remove from heat. Dip bourbon balls in chocolate, and place on wax paper.
Chill 1 hour or until hardened.
Note: For testing purposes only, we used Woodford Reserve Distiller's Select Bourbon.