For basting sauce saut onions and celery in the butter until soft Add tomato puree vinegar and molasses Blend well Place meat on a roasting rack in pan Brush with part of the sauce Bake at 350 for about 1 12 hours or until pork is tender and juices run clear when pierced with a fork Do brush the pork from time to time during cooking for best flavor Cooking time depends on thickness of meat Makes 4 servings