Preheat your Traeger grill to 425*.
Assemble your ingredients and get your big cast iron skillet out.
Rub the bottom and sides of the cast iron skillet with an even coating of butter.
To the bottom of the pan, add an even thin layer of brown sugar.
Top the brown sugar with pecan halves, filling the gaps as possible.
Add another layer of brown sugar on top of the pecans.
Using a sharp knife, cut the biscuit dough into 1/4ths.
Gently shape the biscuit pieces into balls and transfer to a big mixing bowl.
Melt the remaining butter and then pour over the dough balls in the bowl.
Toss to coat.
Add the remaining brown sugar to the bowl along with the cinnamon.
Toss to coat and then pour in the bourbon whiskey.
Stir to distribute evenly.
Arrange the seasoned dough balls in an even layer atop the brown sugar/pecan layer in the pan, ensuring the pieces touch.
Transfer the pan to the preheated Traeger and bake for 35 minutes or until golden brown and bubbly.
Remove the pan from the grill and allow to cool for 10 minutes.
Run a butter knife around the perimeter of the pan, releasing the sides.
Invert a platter atop the skillet and then carefully flip over to release the bourbon pecan pull apart bread.
Warm the caramel sauce in the microwave for 15-30 seconds until runny.
Stir in the remaining bourbon whiskey and mix until well combined.
Drizzle the bourbon pecan pull apart bread with the bourbon caramel sauce and serve.