This recipe very well could produce the most tender pulled pork you've ever tasted. Place a pork shoulder, onions, garlic, sugar, chili powder, salt, cumin and cinnamon in your slow cooker for about 6 to 8 hours on high or 8 to 10 hours on low, or until the pork is fork tender. Then, just shred the pork and add barbecue sauce. See the full recipe here.