In a small bowl, mix together the brown sugar, Worcestershire sauce, paprika, chili flakes, thyme, minced garlic cloves, and the Dijon mustard.
Crosshatch the top of the pork shoulder. Do not cut the crosshatching too deeply or else the pork can dry out too much while cooking.
Pour a tiny amount of water into the bottom of the slow cooker.
Cover the pork in the brown sugar seasoning and place it into the slow cooker.
Cook your pulled pork on high for 5-6 hours or on low for 7-8 hours.
Once the pork is done cooking remove it from the slow cooker and place into a large bowl.
Using two forks in either hand, proceed to pull the pork in opposite directions until all of the pork has been shredded.
Add the 2 cups of BBQ sauce and mix together until all of the pork is covered in sauce.
Serve on buns with a side of coleslaw and enjoy!