Marsha's Shredded BBQ Pork

2-3 lbs pork roast
2 C ketchup
2 T Worcestershire sauce (may sub 1 T for soy sauce)
1 T ground mustard
½ C maple syrup or packed brown sugar
1 t onion salt
1 onion, chopped
2 t minced garlic
Salt to taste

Cook roast in crock-pot with chopped onion, garlic, and salt for approximately 7 hours on high. Drain grease and remove fat and bone. Shred meat and return to crock-pot. Combine ketchup and other ingredients (all seasonings to taste) and pour over meat. Mix to combine and cook for about an hour more. Serve over rice or on rolls for sandwiches.