In a large bowl, combine crispy rice cereal and pecans.
In a saucepan, combine butter, sugar and dates. Cook over medium heat, stirring constantly, until the mixture resembles a paste.
Pour date mixture over cereal mixture and stir to combine. When mixture is fully combined and is cool enough to handle, form into balls and roll in powdered sugar. Place on wax paper or parchment paper to cool completely.
Store in an airtight container for up to a week (not that they have ever lasted that long around here...).