Place roast into a foil lined roaster , Dutch oven or baking dish and coat with non sticking cooking spray.
Mix melted butter, vinegar, salt, pepper and pour over roast.
Seal well with foil.
Bake at 350°F for 4 hours turning roast once every hour.
Remove from oven and let cool completely.
When cool to touch, pull meat apart and place in casserole dish.
Pour barbecue sauce over, roast and serve
Use barbecue sauce for pulled pork recipe, or any flavor of barbecue sauce that you choose comp.