Place pork and root beer in slow cooker and cook on low until tender, about 6 hours. Remove pork from slow cooker and shred with two forks. Discard root beer. Mix barbecue sauce with pork and place in a large cast iron skillet.
Preheat your oven to 350ºF. In a medium bowl mix together cornbread mix, milk, oil, and egg.
Spoon cornbread over the pulled pork mixture. Bake until a toothpick inserted comes out clean, about 30 minutes. Serve hot.
Make sure the cornbread is cooked all the way through by testing with a toothpick.
You can also buy pre-made pulled pork in the deli section of your grocery store.
End your meal with these Whoopie Pies. Yum!