In the slow cooker, combine the apple cider, bourbon, maple syrup, apple sauce, chipotles, brown sugar, Dijon, Worcestershire sauce, garlic, salt, paprika, chili powder, and red adobo seasoning. Stir all of that together. Add in the pork shoulder and coat it in the liquid. Close the slow cooker and turn it to low. Let the pork cook until super tender for 7 hours.

When it's done, remove the pork shoulder and let it rest for a few minutes. In the meantime, pour half of the cooking liquid into a pot on the stove and bring it to a low boil over medium high heat. Let it cook and reduce for 5 minutes, then set it aside.

Take two forks and shred the pork shoulder. Discard the bones and fat back. Transfer the pulled pork to a serving dish and pour the sauce all over it. Toast the buns to make sandwiches, then just assemble to your liking with the red onion and any condiments! Enjoy!