Stir together first 4 ingredients in a large bowl until well blended.
In a separate bowl, stir together bourbon and corn syrup until well blended.
Stir bourbon mixture into the wafer mixture.
Shape into 1-inch balls.
Roll in powdered sugar.
Place finished bourbon balls in a lidded container, cover, and chill at least 30 minutes. Store chilled in a container up to 2 weeks.