Load smoker with hickory wood and preheat to a medium low setting

Slice butternut squash in half lengthwise and scoop out the seeds. 

Place a generous pat of butter in the hole where the seeds were. 

Sprinkle with brown sugar

Place squash in smoker cage or on smoker shelves (depending on your smoker) Cook until desired firmness (about 30-60 minutes)

Scoop out butternut squash into a serving bowl and discard the shell/skin