Cut the onion into thin slices (no need to chop or dice) and arrange on the bottom of your slow cooker. Pour apple cider vinegar on top.
1 medium onion, ¼ cup apple cider vinegar
Remove and discard all packaging from the pork shoulder, including any netting. Use paper towels to pat the pork dry on all sides, then place it on top of the onions.
2 ½ - 3 pound boneless pork shoulder
Spread the minced garlic on top of the pork, followed by a light sprinkle of kosher salt. Slather BBQ sauce on top.
3-4 garlic cloves, kosher salt, 1 and ¼ cups BBQ sauce
Cover and cook on low for 8-10 hours or on high for 5-6 hours.
Use two forks to pull apart the pork directly in the slow cooker, pulling out any large pieces of fat and letting the shredded pork soak up the rendered juices. Once all the meat is shredded, sample and season with extra salt and pepper to taste.
You can serve right away, or leave the lid off and turn the slow cooker back onto the high heat setting to let the juices thicken up a bit. (If you want to thicken them up more, strain some off and simmer in a small saucepan over medium heat, then pour back over the pork.)
Assemble into sandwiches or bowls with coleslaw, pickles, more BBQ sauce, and other veggies as desired.