how long to cook a smoked shoulder
1 Cover lightly with tin foil and roast for 3 hours, this gets the fat melting. 2  Remove tin foil and reduce oven to 225. 3  Continue roasting for 4 hours. 4  Remove from oven and drain drippings if desired. 5  Turn oven up to 450-500. 6  Place pork back in oven until fat is crispy and browned, about 5-10mins.