Melt butter in a large saucepan over medium-low heat. Add granulated sugar, dates and egg. Cook, stirring constantly until sugar is completely dissolved and mixture is thickened, about 7 minutes.
Add pecans, bourbon and coconut. Stir well to combine.
Add cereal and stir well to combine. Remove from heat.
When mixture has cooled enough to be handled, form into balls (1 level tablespoon each).
Place powdered sugar in a shallow bowl. Roll each date ball in powdered sugar.
Refrigerate (stored in an airtight container) for at least 1 hour before serving. Store in an airtight container for up to 4 days.